Authors: Bruce Y Lee; Shawn T Brown; Rachel R Bailey; Richard K Zimmerman; Margaret A Potter; Sarah M McGlone; Philip C Cooley; John J Grefenstette; Shanta M Zimmer; William D Wheaton; Sandra Crouse Quinn; Ronald E Voorhees; Donald S Burke Journal: Health Aff (Millwood) Date: 2011-06 Impact factor: 6.301