Metabolic Effects of Gonadal Hormones and Contraceptive Steroids : Springer : 9781468417845 : 1468417843 : 25 Nov 2012 : The Center for Population Research of the National Institute of Child Health and Human Development began operations in August 1968 and is engaged in research dealing with health-related popula­ tion problems. We organize and support projects for the develop­ ment of new contraceptives and in the broad field of population research in the social sciences o The Center also supports a variety of projects dealing with the mechanism of action and medical effects of contraceptives now in use, particularly oral contraceptives and intrauterine devices. These studies were initiated several years ago at the specific direction of Congresso We were pleased, therefore, with the opportunity to help organize and support this important and timely conference on the "Metabolic Effects of Gonadal Hormones and Contraceptive Steroids," the subject of which forms an integral part of the Ce