Abstract
Campbell, W; Janssens, ACJW
Janssens, ACJW (reprint author), Emory Univ, Rollins Sch Publ Hlth, Dept Epidemiol, 1518 Clifton Rd NE, Atlanta, GA 30322 USA.
JOURNAL OF CLINICAL EPIDEMIOLOGY, 2017; 85 ( ): 70