b'Family physician Family physician James Greenwald, MD, addresses the increase in sexually transmitted illnesses James Greenwald, MD, addresses the increase in sexually transmitted illnesses. Surgeon. Surgeon Jessica Summers, MD, talks about preventing and treating burns Jessica Summers, MD, talks about preventing and treating burns. Urologist. Urologist Dmitriy Nikolavsky, MD, and visiting urologist Igor Vaz, MD, tell about fistula repair in young women in Africa. Dmitriy Nikolavsky, MD, and visiting urologist Igor Vaz, MD, tell about fistula repair in young women in Africa.'