What does it mean to be "brain dead?" Oddly enough, that differs from state to state. Reporter Max Kozlov investigated efforts to create a new legal definition for brain death for Nature magazine. He tells HealthCall's Lee Kelso about how this process is unfolding, what's at stake, and how a tragedy involving a young girl illustrates the confusion around just what it means to be brain dead. Read more at https://www.nature.com/articles/d4158...