A vision for doctoral research training in health behavior: a position paper from the American Academy of Health Behavior. - Baldwin J; Beck KH; Black DR; Blue CL; Colwell B; Gold RS; McDermot J; O'Hara-Murdock P; Olds RS; Sciacca JP; Simons-Morton B; Thombs DL; et al. (American journal of health behavior, 2005)