Bertrand, J. T.,Bogue, D. J.,Mendoza Tobar, S.. A communication experiment to increase the demand for voluntary surgical contraception in El Salvador. Fam Plann Resume. 1978. 2:135-41

Omu, A. E.,Weir, S. S.,Janowitz, B.,Covington, D. L.,Lamptey, P. R.,Burton, N. N.. The effect of counseling on sterilization acceptance by high-parity women in Nigeria. International Family Planning Perspectives. 1989. 15:66-71

Perez, A.,Valdes, V.. Santiago Breastfeeding Promotion Program: preliminary results of an intervention study. Am J Obstet Gynecol. 1991. 165:2039-44

Vernon, R.,Lopez-Canales, J. R.,Carcamo, J. A.,Galindo, J.. The impact of a perinatal reproductive health program in Honduras. International Family Planning Perspectives. 1993. 19:103-9

Foreit, K. G.,Foreit, J. R.,Lagos, G.,Guzman, A.. Effectiveness and cost-effectiveness of postpartum IUD insertion in Lima, Peru. International Family Planning Perspectives. 1993. 19:19-24, 33

Wade, K. B.,Sevilla, F.,Labbok, M. H.. Integrating the Lactational Amenorrhea Method into a family planning program in Ecuador. Stud Fam Plann. 1994. 25:162-75

Soliman, M. H.. Impact of antenatal counseling on couples’ knowledge and practice of contraception in Mansoura, Egypt. Eastern Mediterranean Health Journal. 1999. 5:1002-1013

Jakobsen, M. S.,Sodemann, M.,Molbak, K.,Alvarenga, I.,Aaby, P.. Promoting breastfeeding through health education at the time of immunizations: a randomized trial from Guinea Bissau. Acta Paediatr. 1999. 88:741-7

Peterson, A. E.,Perez-Escamilla, R.,Labboka, M. H.,Hight, V.,Von Hertzen, H.,Van Look, P.. Multicenter study of the lactational amenorrhea method (LAM) III: Effectiveness, duration, and satisfaction with reduced client-provider contact. Contraception. 2000. 62:221-230

Engin-Üstün, Y.,Üstün, Y.,Çetin, F.,Meydanlı, M.,Kafkaslı, A.,Sezgin, B.. Effect of postpartum counseling on postpartum contraceptive use. Archives of Gynecology & Obstetrics. 2007. 275:429-432