The first is an article on The Relationship between Specialty Choice and Gender of US Medical Students, 1990-2003. It debunks the idea that the increase in the fraction of doctors who are women is responsible for the decreasing interest of medical students in specialties where hours are considered "uncontrollable," especially internal and family medicine, pediatrics, ob/gyn and general surgery. In fact, in every time period examined, women were more likely than men to be planning on uncontrollable specialties.
The second is an article from the Johns Hopkins Medical School alumni magazine about the changes involved in implementing the 80-hour/week restrictions on interns' and residents' working hours. On the one hand, it's a little surreal to read about a world in which 80-hour work weeks are considered virtually part-time. But, it's also a story about a place where people swore that it was impossible to limit working hours without destroying the experience, until they didn't have a choice, and then they managed to do it. And if law firms and game companies suddenly faced economic disincentives to working people huge hours (instead of strong incentives to do so), they'd change as well.