[1] Columbia Univ, Dept Med, Ctr Behav Cardiovasc Hlth, Med Ctr, New York, NY USA
[2] Univ Alabama Birmingham, Dept Epidemiol, Birmingham, AL USA
[3] Weill Cornell Med Coll, Dept Med, Divison Gen Internal Med, New York, NY USA
[4] Univ Alabama Birmingham, Dept Med, Div Prevent Med, Birmingham, AL 35294 USA
[5] Univ Alabama Birmingham, Dept Family & Community Med, Birmingham, AL USA
[6] Univ Alabama Birmingham, Div Continuing Med Educ, Birmingham, AL USA