1. a Department of Health Services School of Public Health , University of Washington , US
2. b School of Nursing, Center for AIDS Research , University of Washington , US
3. c Center for AIDS Research , University of Washington , US
4. d Department of Psychology , University of Washington , US
5. e Department of Statistics , University of Washington , US
6. f Ministry of Health , Beira , Mozambique
7. g International Health Program, Department of Health Services , University of Washington , US