Pri. Menção: Ministère de la Santé Publique, Secrétariat Général, Service des Etudes et de l'Information Sanitaire, DHS-Demographic and Health Survey, IRD-Institute for Resource of Development, Mustapha Azelmat, Mohamed Ayad, El Arbi Housni Data Edição: 1993
COTA(S): ESTUS13875