Affiliation: | (1) Department of Health Studies (MC 2007), University of Chicago, 5841 South Maryland Avenue, Chicago, IL 60637, USA;(2) Emory University, 532 N. Kilgo Circle, Atlanta, GA 30322, USA;(3) Department of Psychology, University of Oklahoma, 455 W. Lindsey, Norman, OK 73019, USA;(4) Indiana University, 107 S. Indiana Ave., Bloomington, IN 47405-7000, USA;(5) National Opinion Research Center, 1155 E. 60th Street, Chicago, USA |