Research on adolescent fertility.
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D000293:Adolescent; D000367:Age Factors; D000569:Americas; D001519:Behavior; D003710:Demography; D019049:Developed Countries; D005298:Fertility; D009656:North America; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D011253:Pregnancy in Adolescence; D012106:Research; D012725:Sexual Behavior; D014481:United States
Adolescent Pregnancy; Adolescents; Adolescents, Female; Age Factors; Americas; Behavior; Demographic Factors; Developed Countries; Fertility; Literature Review; North America; Northern America; Population; Population Characteristics; Population Dynamics; Premarital Sex Behavior; Reproductive Behavior; Research Activities; Research Methodology; Sex Behavior; United States; Youth