1.Evaluation of the effect of meteorological risk forecasting service intervention on acute onset and medical expenses of patients with COPD in Pudong New Area of Shanghai
Zhitao LI ; Xiaonan WANG ; Xiaolin LIU ; Juzhong KE ; Yang LIU ; Chaowei FU ; Qingping LIU ; Jiaojiao GAO ; Jiahui SONG ; Kang WU ; Li PENG ; Xiaofang YE ; Xiaonan RUAN
Shanghai Journal of Preventive Medicine 2024;36(2):197-202
ObjectiveTo evaluate the intervention effect of meteorological risk forecasting service on acute onset and medical expenses of chronic obstructive pulmonary disease(COPD) patients, and to provide scientific basis for the establishment of health management model for chronic obstructive pulmonary disease(COPD) patients. MethodsStudy subjects were recruited from chronic obstructive pulmonary patients aged ≥40 in Pudong New Area. Propensity score matching method was used to determine the intervention group and the control group. The control group received regular health education and follow-up management, and the intervention group was provided with meteorological and environmental risk forecasting services through WeChat, mobile phone short message service(SMS)and telephone. Finally, a total of2 589 subjects were included in the analysis, including 1 300 in the intervention group and 1 289 in the control group. General demographic data, past medical history and family history of COPD, COPD related knowledge and practice survey, COPD related symptom assessment, acute onset, health service utilization and medical expenses before and after intervention were collected through questionnaire survey. The differences of acute attack, health service utilization and related medical expenses between the two groups before and after intervention were compared to evaluate the intervention effect. ResultsIn terms of acute attacks, after intervention, the incidence of acute attacks in the intervention group was lower than that before intervention(χ2=52.901, P<0.001), and the incidence of acute attacks in the groups with different intervention methods was lower than that before intervention (P<0.001). WeChat had the best effect, decreasing the incidence by 14.4%, followed by mobile phone SMS SMS decreasing by 12.3%. In terms of utilization of health services, the outpatient rate due to acute attack was lower in the intervention group after intervention than that before intervention (χ2=7.129, P=0.008), and the outpatient rate due to acute attack was lower in the subjects who received the forecast service through mobile phone SMS than that before intervention (χ2=4.675, P<0.001). In terms of medical expenses, there was no significant difference between control group and intervention group with different intervention methods before intervention (P>0.05). After intervention, the difference between the control group and the intervention group with different intervention methods was statistically significant (H=11.864, P<0.05). The results of multiple comparisons showed that compared with the control group, the average annual medical expenses of patients receiving mobile phone SMS and telephone forecasting services after intervention were lower than those of the control group, and the difference was statistically significant (P<0.05). ConclusionMeteorological risk forecasting service can reduce the acute onset of COPD, reduce the rate of consultation and medical expenses due to acute onset, and provide scientific basis for the basic COPD health management model.
2.Clinical features and impact factors in patients with open ocular trauma
Xiaxia* YANG ; Chunxia* MA ; Pengfei LIU ; Chaowei TIAN ; Manhong LI ; Dan HU ; Yusheng WANG ; Zifeng ZHANG
International Eye Science 2024;24(11):1846-1850
AIM:To summarize the clinical features and prognostic factors of patients with open ocular trauma in northwest China, and to explore the application of ocular trauma score(OTS)in open ocular trauma.METHODS:The clinical data of 91 patients(91 eyes)with open ocular trauma admitted to Xijing Hospital from June 2021 to June 2023 were retrospectively analyzed. The correlation analysis of visual acuity prognosis was carried out by age, treatment time, initial visual acuity, trauma zone and other factors, and the relationship between different OTS and prognostic visual acuity was discussed.RESULTS:Univariate analysis showed that age(0-20 years), treatment time(<24 h), initial visual acuity, trauma zone, trauma type(penetrating injury), anterior chamber hematoma, vitreous hematoma were correlated with prognostic visual acuity(all P<0.1); multivariate Logistic regression analysis showed that initial visual acuity and treatment time(<24 h)were risk factors(both P<0.05). There was a significant correlation between different OTS and prognostic visual acuity(rs=0.639,P<0.001).CONCLUSION:Patients with open ocular trauma should be diagnosed and treated as early as possible. The main factors influencing the visual prognosis are age, treatment time, initial visual acuity, trauma zone, trauma type, anterior chamber hematoma and vitreous hematoma. OTS has good application value in visual acuity evaluation of open ocular trauma prognosis.
3.Timing of stage Ⅱ vitrectomy in patients with open ocular trauma
Chunxia* MA ; Xiaxia* YANG ; Chaowei TIAN ; Manhong LI ; Dan HU ; Yusheng WANG ; Zifeng ZHANG
International Eye Science 2024;24(4):630-633
AIM:To observe the clinical efficacy of vitrectomy at different times for open ocular trauma and explore the timing of stage Ⅱ vitrectomy.METHODS: Retrospective case series study. A total of 60 cases(60 eyes)with open ocular trauma who visited our ophthalmology department from June 2022 to February 2023 were included. They were divided into treatment group A(interval ≤14 d)and treatment group B(interval >14 d)based on the interval between the stage Ⅰ emergency treatment surgery and the stage Ⅱ vitreoretinal surgery. Among the 32 cases(32 eyes)in the treatment group A, 16 eyes(50%)had eyeball rupture, 13 eyes(41%)had penetrating injury, and 3 eyes(9%)had perforating injury. Among the 28 cases(28 eyes)in the treatment group B, 15 eyes(54%)had eyeball rupture, 12 eyes(43%)had penetrating injury, and one eye(4%)had perforating injury. The two groups of patients were followed-up for 6 mo after surgery, and the treatment effects were compared.RESULTS:There was no statistically significant difference in visual acuity between the two groups of patients before vitrectomy(P>0.05). In the treatment group A, 10 eyes(31%)had significantly improved visual acuity, 21 eyes(66%)had effectively enhanced visual acuity, and 1 eye(3%)had no improvement in visual acuity at 6 mo after surgery. Among the 28 eyes in the treatment group B, 5 eyes(18%)had significantly improved vision, 16 eyes(57%)had effectively enhanced vision, and 7 eyes(25%)had no change in vision, with statistically significant difference between the two groups(U=322.5, P=0.032). There was no significant difference between the treatment group A and the treatment group B in complications such as secondary glaucoma, silicone oil dependence, vitreous hemorrhage, and eyeball atrophy(P>0.05). There was no evidence of traumatic proliferative vitreoretinopathy(TPVR)in the treatment group A during postoperative follow-up, which was significantly lower than that of the treatment group B(P<0.05).CONCLUSION:The prognosis of the stage Ⅱ vitrectomy for open ocular injury is relatively good after completing the stage Ⅰ surgery within 2 wk.
4.Refractive prediction error in vitrectomy combined with phacoemulsification and intraocular lens implantation for patients with macular disease and cata-ract
Jiayi KONG ; Zifeng ZHANG ; Manhong LI ; Chaowei TIAN ; Yusheng WANG
Recent Advances in Ophthalmology 2024;44(5):370-375
Objective To analyze the refractive prediction error(PE)in combined vitrectomy,phacoemulsification,and intraocular lens(IOL)implantation for patients with macular disease and cataract.Methods This study encom-passed 96 patients(96 eyes)diagnosed with macular disease and cataract,who underwent combined vitrectomy,phacoe-mulsification and IOL implantation at the Department of Ophthalmology in Xijing Hospital,Air Force Military Medical Uni-versity from May 2014 to November 2022.The best corrected visual acuity(BCVA)and actual spherical equivalent(SE)were studied,PE and absolute refractive error(ARE)were calculated,and the correlations between PE and axial length(AL),anterior chamber depth(ACD),lens thickness(LT),flat keratometry(Kf),steep keratometry(Ks),mean kera-tometry(Km),corneal astigmatism degree(cylinder,Cyl),intraocular pressure(IOP),BCVA,corneal astigmatism axis,the classification of macular diseases,and the type of intraoperative vitreous fillers were analyzed.Results In the early postoperative period(within 3 days after surgery),no statistically significant disparity in BCVA was observed compared to preoperative data among the 96 patients studied(P>0.05).The ARE was determined to be(1.47±2.54)D,indicating a substantial deviation between the actual SE and preoperative predictive refraction of the 96 patients(P<0.05).Among them,61 patients had a myopic shift,35 patients had a hyperopic shift,and the values of PE were(-1.81±3.07)D and(0.87±0.96)D,respectively.At the 1-month mark after surgery,there was no statistically significant difference in BCVA compared to the preoperative data of 12 follow-up patients(P>0.05).Similarly,no statistically significant differences were found between every two of the three data,namely the actual SE one month after surgery,the preoperative predictive refraction,and the actual SE in the early postoperative period of the 12 follow-up patients(all P>0.05).Also,no disparity was observed in BCVA at the last follow-up(P>0.05)among the 6 patients who were followed up for over 1 year(long-term postoperative follow-up).The correlation analysis revealed that,in the early postoperative period,the PE of patients with myopic shift was negatively correlated with both preoperative AL and Cyl measurements(both P<0.05).The early postoperative PE of patients with myopic shift was associated with the diagnostic classification of macular diseases(P<0.05),and the degree of myopic shift was observed to be significantly greater in patients with pathological myopia macular holes compared to those with other macular diseases(P<0.05).Additionally,the early postoperative PE of patients with myopic shift was uncorrelated with preoperative ACD,TL,Kf,Ks,Km,IOP,BCVA,the type of intraoperative vitreous fillers and the corneal astigmatism axis(all P>0.05).In contrast,for patients exhibiting hyperopic shift,the PE observed in the early postoperative period exhibited a positive correlation with preoperative Cyl(P<0.05).PE was also correlated with the type of intraoperative vitreous fillers(P<0.05),and the degree of hyperopic shift was notably enhanced when the intraoperative vitreous cavity was filled with silicone oil(P<0.05).The PE of patients with hyperopic shift observed in the early postoperative period exhibited no correlation with preoperative AL,ACD,TL,Kf,Ks,Km,IOP,BCVA,the diagnos-tic classification of macular diseases or the astigmatism axis(all P>0.05).Conclusion Refractive prediction error may occur in patients with macular disease and cataract in the initial postoperative period after the vitrectomy combined with phacoemulsification and IOL implantation,predominantly caused by myopic shift.However,over time,there is a signifi-cant reduction in the magnitude of this refractive error.The direction and extent of diopter drift appear to be influenced by preoperative AL,Cyl,the specific diagnosis of macular disease,and the type of vitreous cavity filler utilized in the surgical procedure.
5.Correlation between urinary protein levels and the incidence of chronic obstructive pulmonary disease in middle-aged and elderly population
Jiahui SONG ; Xiaonan WANG ; Qingping LIU ; Zhitao LI ; Kang WU ; Xiaolin LIU ; Jiaojiao GAO ; Juzhong KE ; Na WANG ; Chaowei FU ; Genming ZHAO ; Xiaonan RUAN
Journal of Public Health and Preventive Medicine 2024;35(4):11-15
Objective To explore the relationship between baseline urinary protein levels and the onset of chronic obstructive pulmonary disease (COPD). Methods A questionnaire survey, blood and urine sample collection, physical examination, and pulmonary function test were conducted among permanent residents over 40 years old in Pudong New Area, Shanghai. The subjects were divided into four groups based on the baseline urine albumin-to-creatinine ratio (ACR) quartiles (0~1.65 mg/g, 1.65~4.89 mg/g, 4.89~10.78 mg/g, and ≥10.78 mg/g). Cox regression analysis was used to explore the relationship between ACR levels and the incidence of COPD in middle-aged and elderly people. Results Among the 3 105 subjects, the median follow-up time was 3.212 years (P25~P75:3.102~3.473). 116 new cases of COPD were observed, with an incidence density of 10.423 per 1000 person-years. The incidence densities for COPD at four ACR levels were 7.922 per 1 000 person-years, 8.300 per 1 000 person-years , 11.419 per 1 000 person-years, and 13.843 per 1 000 person-years, respectively. Cox regression analysis revealed that as the ACR level increased, there was a rising trend in the incidence rate of COPD (χ2=4.396, P=0.036). After adjusting for gender, age, education level, occupational exposure to dust, history of childhood pneumonia, smoking, family history of COPD, central obesity, and hypertension, the risk of developing COPD was 2.499 times higher (95% CI: 1.460~4.276) for ACR levels ≥10.78 mg/g compared to the reference group with a baseline ACR level of 0~1.65 mg/g. Conclusion Elevated ACR levels in middle-aged and elderly population may increase the risk of COPD, and early monitoring of urine protein levels is beneficial for COPD prevention.
6.Effects of compound Duzhong Jiangu Granules on joint function and gut microbiota in patients with Kashin-Beck disease
Xi WANG ; Yu ZHANG ; Yifan WU ; Shujin LI ; Chaowei WANG ; Xi LYU ; Yuequan YUAN ; Yanli LIU ; Feihong CHEN ; Feiyu ZHANG ; Sijie CHEN ; Zhengjun YANG ; Gangyao XU ; Cheng LI ; Hong CHANG ; Cuiyan WU ; Xiong GUO ; Yujie NING
Chinese Journal of Endemiology 2024;43(9):698-703
Objective:To investigate the effects of compound Duzhong Jiangu Granules on joint function and gut microbiota in patients with Kashin-Beck disease.Methods:A single group pre- and post-experimental design was conducted, the patients with Kashin-Beck disease were selected as the subjects in Xunyi County, Xianyang City, Shaanxi Province; and treated with oral administration of compound Duzhong Jiangu Granules (12 g/bag, 1 bag/time, 3 times/day) for a period of 1 month. The improvement of joint function was evaluated using the joint dysfunction index scoring method before and after treatment. Morning stool samples of patients were collected and the changes in gut microbiota were analyzed before and after treatment using 16S rDNA sequencing technology.Results:A total of 87 patients with Kashin-Beck disease were included, including 44 males and 43 females; the age was (60.38 ± 7.12) years old, and the body mass index was (23.67 ± 3.59) kg/m 2. The comprehensive scores of joint dysfunction index for patients with Kashin-Beck disease before and after treatment were (7.27 ± 2.05) and (5.86 ± 2.01) points, respectively, and the difference was statistically significant ( t = 5.88, P < 0.001). The sequencing results of gut microbiota showed that there were statistically significant differences in the alpha diversity (chao1, observed species index) and beta diversity of gut microbiota in patients with Kashin-Beck disease before and after treatment ( Z = - 5.08, - 5.03, R = 0.09, P < 0.001). In the distribution of gut microbiota, Firmicutes was the dominant phylum, with relative abundances of 50.21% and 52.09% before and after treatment, respectively; the Bifidobacterium was the dominant bacterial genus, with relative abundances of 16.83% and 18.81% before and after treatment, respectively. At the genus level, a total of 17 gut microbiota genera were screened out, among which the relative abundances of Hafnia-Obesumbacterium, Gammaproteobacteria_unclassified, Acinetobacter, Pantoea, Leuconostoc, and Akkermanisia were significantly higher than before treatment ( Z = - 2.40, - 2.24, - 2.06, - 3.59, - 2.24, - 2.11, P < 0.05). The relative abundances of Dubosiella, Selenomonas, Anaeroplasma, Lachnospiraceae_ NK4A136_group, Rikenella, Prevotella, Megasphaera, Lactobacillus, Prevotella-9, Phascolarctobacterium, and Desulfovibrio were significantly lower than before treatment ( Z = - 9.38, - 2.61, - 2.18, - 8.43, - 2.45, - 2.46, - 2.49, - 7.29, - 2.29, - 2.55, - 2.08, P < 0.05). Conclusions:Compound Duzhong Jiangu Granules can effectively improve the joint function of patients with Kashin-Beck disease, and alter the diversity and richness of the gut microbiota community. It may reduce clinical symptoms in patients by regulating the structure of gut microbiota.
7.Value of 18F-FDG PET/CT combined with tumor markers ProGRP and NSE in diagnosis and differential diagnosis of stageⅠA small cell lung cancer
Shuai LIN ; Na FANG ; Wenwen JIANG ; Chaowei LI ; Fei JIN ; Cuiyu LIU ; Lei ZENG ; Jing ZHANG ; Yanli WANG
Chinese Journal of Nuclear Medicine and Molecular Imaging 2023;43(6):355-359
Objective:To explore the value of 18F-FDG PET/CT combined with pro-gastrin-releasing peptide (ProGRP) and neuron-specific enolase (NSE) in diagnosis and differential diagnosis of stageⅠA small cell lung cancer (SCLC). Methods:From June 2017 to October 2021, 113 patients (75 males, 38 females; age 32-79 years) with stageⅠA lung cancer (70 with adenocarcinoma, 25 with squamous cell carcinoma, 18 with SCLC; patients with adenocarcinoma and squamous cell carcinoma were combined into non-SCLC (NSCLC) group) and 30 patients with benign pulmonary nodule (21 males, 9 females; age 37-77 years) from the Affiliated Qingdao Central Hospital of Qingdao University were retrospectively analyzed. All patients were examined by 18F-FDG PET/CT and serum tumor markers associated with lung cancer. Differences of the clinical, imaging and tumor markers data among different groups were analyzed by χ2 test, Fisher exact test and Kruskal-Wallis rank sum test. Independent risk factors were analyzed by logistic regression analysis and ROC curve analysis was used to analyze the value of different predictive factors in diagnosis and differential diagnosis of SCLC. Results:There were significant differences in SUV max, lobulation sign, spiculation sign, calcification, pleural traction sign, ProGRP, NSE and carcinoembryonic antigen (CEA) among SCLC, NSCLC and benign nodules groups ( H values: 14.06-20.54, χ2 values: 8.16-14.95, all P<0.05), in which lobulation sign of SCLC was more than that of benign nodules (12/18 vs 26.7%(8/30); χ2=7.41, P=0.007), spiculation sign (2/18 vs 51.6%(49/95); χ2=10.01, P=0.002) and pleural traction sign (1/18 vs 35.8%(34/95); χ2=6.47, P=0.011) were less than those of NSCLC, SUV max was higher than that of benign nodules (7.4(5.8, 9.0) vs 2.3(1.4, 5.1); H=51.82, P<0.001), ProGRP was higher than that of NSCLC and benign nodules (64.0(40.1, 84.8) vs 38.7(26.9, 47.6), 36.7(29.1, 40.5) ng/L; H values: 36.13, 43.96, P values: 0.002, 0.001) and NSE was higher than that of benign nodules (12.4(10.9, 14.5) vs 7.4(5.4, 11.8) μg/L; H=40.53, P=0.001). When differentiated SCLC from NSCLC, spiculation sign (odds ratio ( OR)=0.043, 95% CI: 0.004-0.450, P=0.009) and ProGRP ( OR=1.083, 95% CI: 1.035-1.133, P<0.001) were independent risk factors for SCLC, and the AUC of the two factors combination was 0.875, with the sensitivity and specificity of 14/18 and 84.2%(80/95). When differentiated SCLC from benign nodules, SUV max( OR=2.706, 95% CI: 1.099-6.662, P=0.030), ProGRP ( OR=1.165, 95% CI: 1.009-1.344, P=0.038) and NSE ( OR=1.639, 95% CI: 1.016-2.645, P=0.043) were independent risk factors for SCLC, and the AUC of the three factors combination was 0.985, with the sensitivity and specificity of 17/18 and 96.7%(29/30). Conclusion:18F-FDG PET/CT combined with tumor markers ProGRP and NSE is helpful to improve the diagnosis and differential diagnosis of stage ⅠA SCLC.
8.Effect of desflurane on activity of neurons in 2/3 layer cortex of mice based on high-resolution light-field intelligent imaging system
Kunsha CHEN ; Zilin WANG ; Rujin ZHANG ; Chaowei ZHUANG ; Ao LI ; Weidong MI ; Jiangbei CAO
Chinese Journal of Anesthesiology 2023;43(11):1373-1377
Objective:To explore the effect of desflurane on activity of neurons in 2/3 layer cortex of mice by using high-resolution light-field intelligent imaging system.Methods:Six SPF healthy male Rasgrf/Ai148d mice, aged 8-12 weeks, weighing 25-30 g, were selected. The 6 mice were subjected to skull replacement surgery and then recovered for 2 weeks before experiment.The mice were first fixed under the high-resolution light-field intelligent imaging system for 5 min before calcium signals in 2/3 layer cortex were recorded. The 7.5% desflurane was inhaled for anesthesia starting from 100 s of recording and inhalation was stopped at 700 s, and then the recording continued for 700 s. The total duration of the experiment was 1 500 s. Neurons were extracted and data were analyzed using MATLAB software.Results:When mice were subjected to inhalation anesthesia with desflurane, the calcium fluorescence intensity and percentage of active neurons in the cortex 2/3 layers initially increased significantly, then continuously declined, stabilizing after about 100 s of inhalation. After cessation of inhalation, it gradually recovered to the pre-anesthetic level around 50 s post-inhalation. During the induction period of anesthesia, the percentage of active neurons was significantly higher in the retrosplenial cortex than in the other brain regions ( P<0.05). Conclusions:The disappearance and recovery of consciousness induced by desflurane anesthesia at the neuronal level is not a " symmetrical" process. Neuronal activity in the brain exhibits asymmetry when entering and recovering from an anesthetized state. The retrosplenial cortex, which is related to sleep-wake cycles, may play a crucial role in maintaining consciousness during induction of anesthesia with desflurane.
9.18F-FDG PET/CT combined with tumor markers for diagnosis of non stage ⅠA limited-stage small cell lung cancer
Shuai LIN ; Yumeng JIANG ; Qi WANG ; Wenwen JIANG ; Chaowei LI ; Fei JIN ; Lei ZENG ; Cuiyu LIU ; Haiying ZHANG ; Na FANG ; Yanli WANG
Chinese Journal of Medical Imaging Technology 2023;39(12):1813-1818
Objective To observe the value of 18F-FDG PET/CT combined with tumor markers for diagnosis of non stageⅠ A limited-stage small cell lung cancer(LS-SCLC).Methods Totally 87 cases of non stage Ⅰ A LS-SCLC(LS-SCLC group),137 of non stage Ⅰ A non-small cell lung cancer(NSCLC,NSCLC group)and 48 cases of pulmonary inflammatory lesions(inflammatory group)were enrolled.Patients'general data,tumor marker levels and PET/CT findings were comparatively analyzed.Logistic regression analysis was performed to evaluate the efficacy of parameters for diagnosing non stage Ⅰ A LS-SCLC.Results There were significant differences of patients'age,neuron-specific enolase(NSE),pro-gastrin-releasing peptide(ProGRP),carcinoembryonic antigen(CEA),squamous cell carcinoma antigen(SCCA)and cytokeratin-19-fragment(CYFRA21-1),as well as of the maximum lesion diameter,maximum standard uptake value(SUVmax),morphology,spiculation sign,relationship between long axis and bronchus,lymph node fusion and proportion of lymph node with higher SUVmax than primary lesion among 3 groups(all P<0.05).The area under the curve(AUC)of the combination of spiculation sign,NSE>23.5 μg/L,ProGRP>111.8 ng/L,SCCA≤2.5 μg/L and CYFRA21-1≤7.4 μg/L for differentiating LS-SCLC and NSCLC was 0.91,higher than that of each single parameter(all P<0.05).AUC of the combination of SUVmax>8.1,NSE>19.4 μg/L,ProGRP>72.5 ng/L and lymph node fusion for differentiating LS-SCLC and pulmonary inflammatory lesions was 0.99,higher than each single parameter(all P<0.05).Conclusion 18F-FDG PET/CT combined with tumor markers ProGRP and NSE was helpful for diagnosing non stage ⅠA LS-SCLC.
10.Status and associated factors of mild cognitive impairment among the elderly in Shanghai community
Yuting YANG ; Chaowei FU ; Zhaohua XIN ; Jialie FANG ; Rui SONG ; Jiawen KUANG ; Yuwen ZHANG ; Haocen LI ; Jingyi WANG
Shanghai Journal of Preventive Medicine 2023;35(10):1016-1024
ObjectiveTo explore the status of mild cognitive impairment (MCI) among the elderly in Shanghai communities, and to identify the factors associated with MCI. MethodsThe Montreal Cognitive Assessment-Basic (MoCA-B) was used to screen for MCI in elderly adults. Logistic regression analysis was conducted to identify the factors associated with MCI. ResultsAmong 629 participants, 226 (35.90%) were positive for MCI. Older age (OR=1.04, 95%CI: 1.01-1.07), lower family income (average OR=2.20, 95%CI: 1.01-4.80; poor OR=2.59, 95%CI: 1.03-6.50), hearing impairment affecting daily life (OR=1.86, 95%CI: 1.19-2.91), and anxiety symptoms (OR=1.58, 95%CI: 1.02-2.44) were associated with the positive for MCI. Living in central urban area (OR=0.57, 95%CI: 0.37-0.89) and having higher social support (OR=0.97, 95%CI: 0.94-1.00) were protective factors for MCI. ConclusionThe current status of MCI among the elderly in Shanghai communities is not optimistic. It is important and necessary to establish the cognitive-friendly community for the elderly.


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