Perry Geraldine S, Patil Susheel P, Presley-Cantrell Letitia R
Epidemiology and Surveillance Branch, Division of Population Health, Centers for Disease Control and Prevention, 4770 Buford Hwy, NE, Mailstop K-67, Atlanta GA 30341, USA.
Prev Chronic Dis. 2013 Aug 8;10:E133. doi: 10.5888/pcd10.130081.