1. Department of Epidemiology; University of Washington School of Public Health; Seattle WA USA
2. Health Alliance International; Beira Mozambique
3. Department of Family Child Nursing; University of Washington; Seattle WA USA
4. Beira Operations Research Center; Beira Mozambique
5. Department of Global Health; University of Washington School of Public Health and Community Medicine; Seattle WA USA
6. Community Health Department; School of Medicine; Eduardo Mondlane University; Maputo Mozambique