Specialists' and primary care physicians' participation in medicaid managed care. - Backus, Lisa; Osmond, Dennis; Grumbach, Kevin; Vranizan, Karen; Phuong, Lucy; Bindman, Andrew B.; Backus, L; Osmond, D; Grumbach, K; Vranizan, K; Phuong, L; Bindman, A B (JGIM: Journal of General Internal Medicine, 2001)