Inaugural address: trends and prospects for research on fertility and sterility in the 1980s.- I: Main Themes of the Congress.- Section 1: Neuro-endocrinology — Reproductive Releasing Hormones.- 1 Mechanisms regulating LHRH release: implications for fertility regulation.- 2 Medical castration in men: the first clinical application of LHRH agonists.- 3 Reproductive releasing hormones — the future.- Section 2: Prediction and Detection of Ovulation.- 4 The physiological basis of the fertile period.- 5 Biochemical methods for predicting ovulation.- 6 Ultrasound and follicular development.- 7 Methods of identifying the fertile period.- 8 A critical review of natural family planning studies.- Section 3: Fertilization in vitro and in vivo.- 9 Current status of human in vitro fertilization.- 10 Events leading to fertilization in mammals.- 11 Early human embryology.- 12 Organization of an in vitro fertilization programme.- 13 Clinical experiences with in vitro fertilization and embryo transfer programmes.- Section 4: Tubal Factors in Reproduction.- 14 Physiology of tubal function.- 15 The epidemiology of salpingitis.- 16 Pelviscopic therapy for tubal disease.- 17 Prevention of postoperative adhesions.- Section 5: Immunology and Reproduction.- 18 Immunological aspects of implantation.- 19 The nature of the placental immunological barrier.- 20 Detection of immunoreactive materials in body fluids.- 21 Immunological methods of birth control.- 22 Treatment of immunologically conditioned infertility.- Section 6: Male Fertility.- 23 Epididymal function.- 24 Gossypol.- Section 7: New Approaches to Female Fertility Regulation.- 25 New approaches to female fertility regulation — an overview.- 26 Recent progress in the use of copper IUDs.- 27 Steroid-releasing vaginal rings: a review.- 28 Postcoital contraception: experiences with ethinyloestradiol/norgestrel and levonorgestrel only.- Section 8: Lactation and Birth Spacing.- 29 Lactation and birth spacing: an overview.- 30 Clinical, hormonal and ultrasonic indicators of returning fertility after childbirth.- 31 Steroidal contraception and lactation.- 32 Birth intervals — demographic factors.- Section 9: Psychosocial Aspects of Reproduction.- 33 The infertile couple and the gynaecologist: psychosocial and emotional aspects.- 34 Stress in infertile couples.- 35 Psychosexual problems in infertility.- 36 Problems of adoption.- 37 Psychosocial aspects of fertility control.- Section 10: Social and Demographic Problems of Fertility.- 38 Social and political factors in fertility control.- 39 Population trends and prospects.- 40 Fertility, population and development.- II: Workshops.- 41 Workshop on the standardized investigation of the infertile couple.- 42 Monoclonal antibodies in human reproduction.- 43 Therapeutic approaches to male infertility.- 44 Artificial insemination.- 45 Luteal-phase insufficiency.- 46 Secondary infertility.- 47 Sexually transmitted diseases and infertility.- 48 Genetics in reproduction.- 49 Occupational hazards in reproductive health.- 50 Principles of training in human reproduction.- III: Special Symposia.- Section 1: Prolactinomas and Pregnancy.- 51 Introduction.- 52 Medical investigation of abnormal prolactin states.- 53 Neuroradiology of prolactinomas.- 54 The outcome of pituitary exploration in patients with hyperprolactinaemic infertility.- 55 Medical treatment of prolactinomas.- 56 Surveillance of Parlodel (bromocriptine) in pregnancy and offspring.- 57 Prolactinomas in pregnancy.- Section 2: Advances in Fertility Control and Treatment of Sterility.- 58 Pre-treatment evaluation of ovarian infertility.- 59 Hyperprolactinaemic infertility: some considerations on medical management.- 60 Lisuride — a new drug for treatment of hyperprolactinaemic disorders.- 61 Benefits and risks of hormonal contraception — interpretation.- 62 Towards safer oral contraception.- 63 The influence of the triphasic pill and a desogestrelcontaining combination pill on some physical, biochemical and hormonal parameters: a preliminary report.- 64 Clinical comparison between a monophasic and a tri-phasic preparation.- 65 Comparative study of lipid metabolism and endocrine function in women receiving levonorgestrel- and desogestrel-containing oral contraceptives.- Section 3: Trends in Oral Contraception.- 66 Serum glycosylated proteins as a measure of carbohydrate metabolism in users of oral contraceptives.- 67 Androgenic, oestrogenic and antioestrogenic effects of desogestrel and lynestrenol alone: effects on serum proteins, sex hormones and vaginal cytology.- 68 Influence of a desogestrel/ethinyloestradiol combination pill on sex hormone binding globulin and plasma androgens.- 69 Comparative haematological effects of new ethinyl oestradiol-progestogen combinations.- 70 Oestroprogestogens and serum lipoproteins.- 71 Cycle control and modern contraception: some relevant aspects.- 72 Studies with desogestrel for fertility regulation.- Section 4: Reproductive Health in Adolescence.- 73 Introductory remarks.- 74 Adolescent sexual behaviour.- 75 Adolescent health services.- 76 Teenage contraception.- 77 Teenage pregnancy and abortion.