First year Northwestern University medical students review pages in a textbook as instructor Doctor Sudha Rao (B) talks about the human vagina for a pelvic exam on rubber dummies during their human anatomy class in Chicago, Illinois March 15, 2007. The hands-on educational class is taught by assistant professor of surgery Carla Pugh. Pugh, has patented technology that combines portions of fully formed anatomical mannequins with computers to teach medical students to do exams on the body's most private and sensitive areas -- genitalia, breasts and rectums. Picture taken March 15, 2007. To match feature DOCTORS-DUMMIES/ REUTERS/Joshua Lott (UNITED STATES)