OBJECTIVE:To establish the HPLC fingerprints for Herba clematidis in northeast. METHODS:HPLC was per-formed on the column of Hedera ODS-2 C18 with mobile phase of acetonitrile-0.5% phosphoric acid solution(gradient elution)at a flow rate of 1.0 mL/min,detection wavelength was 338 nm,column temperature was 30 ℃,and the injection volume was 20 μL. Using rutin as as a reference,the HPLC profiles of 10 batches of H. clematidis were determined,Similarity Evaluation Software for Chromatographic Fingerprint of Traditional Chinese Medicine(2004A edition) was used for the common peaks identification and similarity evaluation. RESULTS:There were 16 common peaks in the 10 batches of H. clematidis,similarity degree was higher than 0.9. It was proved that the HPLC profiles and control fingerprint profile of 10 batches of H. clematidis had good consistency. CONCLUSIONS:The established fingerprints can provide reference for the identification and quality evaluation of H. clematidis in northeast.

Objective To retrospectively review the history and development of radiotherapy quality assurance ( QA) in the Affiliated Cancer Hospital of Fudan University, and to report the primary experience and evolvement of an entire QA workflow management. Methods The multidisciplinary QA team has implemented an entire QA workflow management process in the Radiotherapy Center using the failure modes and effects analysis ( FMEA) and plan?do?check?act ( PDCA) tool since April 2015. Treatment data of approximately 6000 patients before and after implementation were compared. Results The error rate was reduced from 17% to 09% after using the entire QA workflow management. Conclusions Entire QA workflow management effectively improves the accuracy and safety of radiotherapy.

Objective To study the prevalence trends and etiology of hand,foot,and mouth disease (HFMD) in hospitalized children.Methods The clinical data of 11 510 cases of children hospitalized with HFMD from 2008 to 2017 in Department of Infection Diseases of Kunming Children's Hospital were collected,and to retrospectively analyze the characteristics,time distribution and pathogen distribution of the cases.Results Of the 11 510 children with HFMD,6 100 were male and 5 410 were female.There were 9 814 cases under 3 years old,1 696 over 3 years old.HFMD occurred throughout the year.The peak months of the disease were April to July,with the time distribution of single peak.There were 4 690 severe cases and 3 452 critical cases,accounting for 70.34％.The main pathogens detected were enteroviruses A71 (EV-A71),coxsackievirus A16 (CV-A16) and other enteroviruses (EV),with 3 803 cases (36.02％),1 122 cases (10.63％) and 3 401 cases (32.21％) respectively.EV-A71 and CV-A16 infections dominated from 2008 to 2013,while EV-A71 and other EV infection dominated from 2014 to 2017.Conclusions EV-A71,CV-A16 and other EV are the main pathogens of HFMD in Kunming.Critical HFMD cases are mainly caused by EV-A71 infection.

Bone defects caused by different causes such as trauma, severe bone infection and other factors are common in clinic and difficult to treat. Usually, bone substitutes are required for repair. Current bone grafting materials used clinically include autologous bones, allogeneic bones, xenografts, and synthetic materials, etc. Other than autologous bones, the major hurdles of rest bone grafts have various degrees of poor biological activity and lack of active ingredients to provide osteogenic impetus. Bone marrow contains various components such as stem cells and bioactive factors, which are contributive to osteogenesis. In response, the technique of bone marrow enrichment, based on the efficient utilization of components within bone marrow, has been risen, aiming to extract osteogenic cells and factors from bone marrow of patients and incorporate them into 3D scaffolds for fabricating bone grafts with high osteoinductivity. However, the scientific guidance and application specification are lacked with regard to the clinical scope, approach, safety and effectiveness. In this context, under the organization of Chinese Orthopedic Association, the Expert consensus for the clinical application of autologous bone marrow enrichment technique for bone repair ( version 2023) is formulated based on the evidence-based medicine. The consensus covers the topics of the characteristics, range of application, safety and application notes of the technique of autologous bone marrow enrichment and proposes corresponding recommendations, hoping to provide better guidance for clinical practice of the technique.