Factors influencing the spread of gonorrhea. II. Sexual behavior at different ages.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D003075:Coitus; D003273:Contraceptive Devices; D003276:Contraceptives, Oral; D005260:Female; D006069:Gonorrhea / Q000453:epidemiology*; D006801:Humans; D008297:Male; D011584:Psychology; D012737:Sex Factors; D012725:Sexual Behavior; D012749:Sexually Transmitted Diseases / Q000517:prevention & control; D012959:Socioeconomic Factors; D013334:Students; D013548:Sweden; D013997:Time Factors
D003276:Contraceptives, Oral