Backus Lisa I, Belperio Pamela S, Loomis Timothy P, Yip Gale H, Mole Larry A
Population Health/Office of Public Health, Palo Alto, California2Veterans Health Administration, Palo Alto, California.
JAMA Intern Med. 2013 Sep 9;173(16):1549-52. doi: 10.1001/jamainternmed.2013.8133.