Medical Ethics Committee founded in medical orgnizations,universities,academic periodicals and hygiene institutes is an international regulation in the filed of medicine.Although we have done a large amount of work to be in line with international standards,there are still some problems such as no systemic roles,function deficiencies etc.Therefore,we should study its establishing background and main function and strengthen its construction.

Case teaching has evident characteristics compared with traditional theory teaching. This article expound the purpose,significance,teaching process and the noticeable problems of case teaching in medicaI ethics teaching.

Objective To assess patients' self-management behaviors and examine factors influencing self-management behaviors in patients undergoing maintenance hemodialysis.Methods This research was conducted as a descriptive survey by 125 patients from a hemodialysis clinic in Tianjin.The data were collected with self-management behaviors questionnaire of hemodialysis patients and self-efficacy scale for managing chronic disease.Results Regression analysis revealed sex,educational level and selfefficacy were independent predictors for self-management behaviors.Conclusions Hemodialysis patients' self-management behaviors need to be improved in the future.Healthcare professionals should recognize the factors hindering self-management behaviors from the patients' perspective while assisting them with appropriate skills in making behaviors changes possible.