文档介绍:Singapore Med J 2005 Vol 46(12) : 667 Do no harm: do thyself no harm Y C Chee Department of General Medicine Tan Tock Seng Hospital 11 Jalan Tan Tock Seng Singapore 308433 Y C Chee, MBBS, FRCP, FAMS Clinical Professor Correspondence to: Prof Chee Yam Cheng Tel: (65) 6357 8301 Fax: (65) 6357 7871 Email: yam_cheng_ ******@.sg INTRODUCTION Dr Lee Pheng Soon, President of the Singapore Medical Association (SMA), Professor Goh Lee Gan, my esteemed colleague and friend since school days in the Anglo-Chinese School, Council members, friends, ladies and gentlemen. I feel unworthy of this honour, seeing I am neither retired nor seemingly aged enough to have acquired the wisdom necessary to give this prestigious lecture of the SMA, which is centred usually on medical ethics. I congratulate the SMA on establishing the Centre for Medical Ethics and Professionalism some years back, and I have tried to attend the many lectures it has anised. The process of making ethical decisions in clinical practice is not easy. Ethics must be understood within a historical and cultural context. Physicians have both moral and legal obligations and the two may be discordant. Medical and professional ethics often establish positive duties (that is, what one should do) to a greater extent than the law. Current understanding of medical ethics is based on the principles from which po sitive duties emerge. These