title: RESEARCH IN POPULATION CONTROL.
mesh_terms: D003267:Contraception; D005260:Female; D006801:Humans; D008297:Male; D010060:Ovulation; D011153:Population; D011155:Population Control; D012106:Research; D013094:Spermatozoa
keywords: CONTRACEPTION; OVULATION; POPULATION; RESEARCH; SPERMATOZOA