Swenson Sonja M, Chamberlain Lisa J, Sanders Lee M, Sundaram Vandana, Wise Paul H
Center for Primary Care and Outcomes Research, Stanford University, Stanford, California.
Department of Pediatrics, Stanford University School of Medicine, Palo Alto, California.
JAMA. 2015 Jul 28;314(4):405-7. doi: 10.1001/jama.2015.7169.