[1] Tulane Univ, Sch Med, Dept Family & Community Med, 1430 Tulane Ave,8033, New Orleans, LA 70112 USA
[2] Cook Cty Hlth, Dept Prevent Med, 1950 West Polk St, Chicago, IL 60612 USA
[3] Meharry Med Coll, Dept Family & Community Med, 1005 Dr DB Todd Jr Blvd, Nashville, TN 37208 USA