Regulation of human fertility : proceedings of a advances in fertility regulation organized by the World Health Organization in collaboration with the Ministry of health of the USSR held at the WHO collaborating Centre for Research and Training in Human Reproduction at the All-Union Scientific Research Institute of Obstetrics and Gynaecology, Moscow, on 16-19 November 1976 - Diczfalusy, Egon, 1920-2016 (Scriptor, 1977)