title: Shanghai premarital adolescent use of contraceptive methods and analysis of influencing factors.
authors.forename: E
authors.initials: E
authors.lastname: Gao
authors.forename: X
authors.initials: X
authors.lastname: Tu
authors.forename: W
authors.initials: W
authors.lastname: Yuan
mesh_terms: D000028:Abortion, Induced; D000293:Adolescent; D000367:Age Factors; D001208:Asia; D001519:Behavior; D002681:China; D003267:Contraception; D003268:Contraception Behavior; D003625:Data Collection; D003710:Demography; D003906:Developing Countries; D005193:Family Planning Services; D005202:Asia, Eastern; D011153:Population; D011154:Population Characteristics; D012106:Research; D012494:Sampling Studies; D012725:Sexual Behavior
keywords: Abortion, Induced; Adolescents; Age Factors; Asia; Behavior; China; Contraception; Contraceptive Usage--determinants; Demographic Factors; Developing Countries; Eastern Asia; Family Planning; Fertility Control, Postconception; Population; Population Characteristics; Premarital Sex Behavior; Research Methodology; Research Report; Sampling Studies; Sex Behavior; Studies; Surveys; Youth