1. Identifying and assisting the impaired physician;Boisaubin;Am J Med Sci,2001
2. John Gregory's writings on medical ethics and the philosophy of medicine;McCulbough,1998
3. Medical ethics, or a code of institutes and precepts, adapted to the professional conduct of physicians and surgeons;Percival,1803
4. Physicians and addiction;Verghese;N Engl J Med,2002