Falling teen pregnancy, birthrates: what's behind the declines?
D000293:Adolescent; D000367:Age Factors; D000569:Americas; D001723:Birth Rate; D003710:Demography; D019049:Developed Countries; D005298:Fertility; D009656:North America; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D018873:Pregnancy Rate; D011253:Pregnancy in Adolescence; D012725:Sexual Behavior; D014481:United States
Adolescent Pregnancy; Adolescents; Age Factors; Americas; Birth Rate--changes; Demographic Factors; Developed Countries; Fertility; Fertility Decline; Fertility Measurements; North America; Northern America; Population; Population Characteristics; Population Dynamics; Pregnancy Rate--changes; Reproductive Behavior; United States; Youth