1. Faculty of Sociology, Anthropology and Folkloristics, School of Social Sciences, University of Iceland, IS-102 Reykjavik, Iceland
2. Office of the Rector, Jean Piaget University of Guinea-Bissau, Bissau 1000, Guinea-Bissau
3. National Institute of Public Health (INASA), Ministry of Public Health, Bissau 1000, Guinea-Bissau
4. Instituto Nacional de Estudos e Pesquisa (INEP), Avenida dos Combatentes da Liberdade da Pátria, Complexo Escolar 14 de Novembro, Bissau C.P. 112, Guinea-Bissau