title: Poor contraceptive use in the teenage years: situational and developmental interpretations.
authors.forename: D M
authors.initials: DM
authors.lastname: Morrison
authors.forename: H
authors.initials: H
authors.lastname: Shaklee
mesh_terms: D000293:Adolescent; D000367:Age Factors; D000569:Americas; D001519:Behavior; D001695:Biology; D003267:Contraception; D003268:Contraception Behavior; D003469:Culture; D003710:Demography; D019049:Developed Countries; D005193:Family Planning Services; D005298:Fertility; D006297:Health Services Accessibility; D019359:Knowledge; D008962:Models, Theoretical; D009656:North America; D011057:Politics; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D011253:Pregnancy in Adolescence; D011275:Pregnancy, Unwanted; D012307:Risk Factors; D012725:Sexual Behavior; D014481:United States
keywords: Adolescent Pregnancy; Adolescents; Age Factors; Americas; Behavior; Biology; Conservatism; Contraception; Contraceptive Availability; Contraceptive Usage; Cultural Background; Demographic Factors; Developed Countries; Family Planning; Fertility; Knowledge; Literature Review; North America; Northern America; Political Factors; Population; Population Characteristics; Population Dynamics; Pregnancy, Unwanted--changes; Premarital Sex Behavior; Reproductive Behavior; Risk Factors; Sex Behavior; Theoretical Studies; United States; Youth