The Doctor of Medicine program at the University of Toronto is a 4 year MD program with a total enrollment of about 850 students. The first two years are known as the preclerkship curriculum, during which M.D. candidates acquire the basic biomedical and human anatomy knowledge. The principles of medical ethics, professionalism and medical jurisprudence are also taught in preclerkship. The final two years form the clerkship curriculum that takes place in hospitals and ambulatory clinics. The core clerkship rotations cover the essential medical specialties: surgery and internal medicine, psychiatry, pediatrics, obstetrics and gynecology, family medicine, ambulatory experience, neurology, emergency medicine, anesthesia, ophthalmology, otolaryngology and dermatology. Additional rotations are devoted to elective clerkships that provide training in subdisciplines within the major specialities.