Fundamental research in the population sciences.
D005193:Family Planning Services; D005260:Female; D005306:Fertilization; D005640:Follicle Stimulating Hormone / Q000502:physiology; D006062:Gonadotropins; D006801:Humans; D008297:Male; D011156:Population Density; D011158:Population Growth; D012098:Reproduction; D012106:Research; D012959:Socioeconomic Factors; D013079:Sperm Maturation; D013083:Sperm Transport; D013256:Steroids / Q000096:biosynthesis; D013737:Testis / Q000502:physiology; D014171:Transients and Migrants
D006062:Gonadotropins; D013256:Steroids; D005640:Follicle Stimulating Hormone