7Yousuf A,Ishaque S,Qidwai W.Depression and its associated risk factors in medical and surgical post graduate trainees at a teaching hospital:A cross sectional survey from a developing country[J].J Pak Med Assoc,2011,61(10):968-973.
8Backovic D V,Zivojinovic J I,Maksimovic J,et a1.Gender differences in academix stress and burnout among medical students in final years of education[J].Psychiatria Hiatria Danubina,2012,24(2):175-181.
