[1] Univ Amsterdam, Acad Med Ctr, Dept Social Med, NL-1105 AZ Amsterdam, Netherlands
[2] Kwame Nkrumah Univ Sci & Technol, Dept Community Hlth, Sch Med Sci, Kumasi, Ghana
[3] Charles R Drew Univ, Clin Res Ctr, Los Angeles, CA USA
[4] TNO Qual Life, Leiden, Netherlands
[5] Columbia Univ Coll Phys & Surg, Div Gen Med, Behav Cardiovasc Hlth & Hypertens Program, New York, NY 10032 USA