Adolescent unintended pregnancy: the scope of the problem.
D000028:Abortion, Induced; D000293:Adolescent; D000367:Age Factors; D000569:Americas; D001519:Behavior; D003267:Contraception; D003268:Contraception Behavior; D003710:Demography; D019049:Developed Countries; D005069:Evaluation Studies as Topic; D005193:Family Planning Services; D005298:Fertility; D009656:North America; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D011253:Pregnancy in Adolescence; D012725:Sexual Behavior; D014481:United States
Abortion, Induced; Adolescent Pregnancy; Adolescents; Age Factors; Americas; Behavior; Contraception; Contraceptive Usage; Critique; Demographic Factors; Developed Countries; Family Planning; Fertility; Fertility Control, Postconception; North America; Northern America; Population; Population Characteristics; Population Dynamics; Premarital Sex Behavior; Reproductive Behavior; Sex Behavior; United States; Youth