1. Scientific basis for the content of routine antenatal care. II. Power to eliminate or alleviate adverse newborn outcomes; some special conditions and examinations;Bergsjo;Acta Obstetrica Gynecologica Scandinavica,1997
2. Trends in unwanted childbearing in the developing world;Bongaarts;Studies in Family Planning,1997
3. Ecuador: Encuesta Demográfica y de Salud Materna e Infantil, ENDEMAIN-94. Informe General,1995
4. Determinants of unintended pregnancy among women in Ecuador;Eggleston;International Family Planning Perspectives,1999
5. Utilization of maternal health-care services in Peru: the role of women’s education;Elo;Health Transition Review,1992