An investigation of the special policies for chronic diseases in medical insurance for urban employees and residents has been conducted in 333 prefecture-level cities in China,and the results showed that 78％ of all cities included chronic hepatitis B (CHB) in medical reimbursement for urban employees and 57％ included CHB in medical reimbursement for urban residents.However,there are still some issues to be resolved,such as inconsistent descriptions of the diagnosis of CHB-related diseases,inconsistent diagnostic criteria,lack of standardization of reimbursement process,infringement of patient privacy,and inadequate dose prescribed for CHB patients in the outpatient service.Therefore,we suggested that the Ministry of Human Resources and Social Security should introduce unified policies to include CHB in medical reimbursement,unify disease name and diagnostic criteria,standardize the reimbursement process for CHB,and increase the prescribed dose.

During the COVID-19 epidemic, our national guidelines have suggested that surgical patients should wear a mask to decrease the potential transmission of COVID-19 in the operating room, as long as the condition allows. However, so far, there is no study to discuss the influence of wearing a mask on the ventilation and blood oxygenation status in patients of spontaneous breathing with supplementary oxygen through an anesthetic facemask. This is a before-after study in the same patient, and 10 healthy volunteers were recruited, by testing the arterial blood gas parameters at key time points before and after oxygen inhalation to evaluate the effects of two different supplementary oxygen methods ('disposable medical mask + anesthetic facemask' and 'anesthetic facemask only') on the oxygenation of subjects. Our data demonstrated whether wearing a disposable medical mask or not could effectively increase the oxygen supply of the subjects compared with the basic value before oxygen inhalation; however, compared with the group without mask, the arterial oxygen partial (PaO
COVID-19 ; Healthy Volunteers ; Humans ; Masks ; Oximetry ; Oxygen/blood*