Unwanted teenage pregnancies: incidence, interpretation, and intervention.
D000293:Adolescent; D000367:Age Factors; D000569:Americas; D001519:Behavior; D017280:Condoms; D003267:Contraception; D003268:Contraception Behavior; D003710:Demography; D019049:Developed Countries; D003906:Developing Countries; D005060:Europe; D005193:Family Planning Services; D005298:Fertility; D008962:Models, Theoretical; D009042:Motivation; D009656:North America; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D011253:Pregnancy in Adolescence; D011275:Pregnancy, Unwanted; D011584:Psychology; D012725:Sexual Behavior; D014481:United States
Adolescent Pregnancy; Adolescents; Age Factors; Americas; Barrier Methods; Behavior; Condom; Contraception; Contraceptive Methods; Contraceptive Usage; Demographic Factors; Developed Countries; Developing Countries; Europe; Family Planning; Fertility; Motivation; North America; Northern America; Population; Population Characteristics; Population Dynamics; Pregnancy, Unwanted; Premarital Sex Behavior; Psychological Factors; Reproductive Behavior; Sex Behavior; Theoretical Studies; United States; Western Europe; Youth