Title Male contraception, advances and future prospects : proceedings of an International Workshop on Male Contraception, Advances and Future Prospects, May 28-31, 1985, Geneva, Switzerland / sponsored by the Program for Applied Research on Fertility Regulation, Northwestern University, Chicago, Illinois ; edited by Gerald I. Zatuchni ... [et al.] ; prepared with the technical assistance of Carolyn K. Osborn, with 93 contributors.