Rosenstock Linda, Silver Gillian B, Helsing Karen, Evashwick Connie, Katz Ruth, Klag Michael, Kominski Gerald, Richter Donna, Sumaya Ciro
University of California-Los Angeles, School of Public Health, CA 90095, USA.
Public Health Rep. 2008 May-Jun;123(3):395-8. doi: 10.1177/003335490812300322.