[Teenage pregnancy.  Pt. 1.  Contraception and sexuality behavior (author's transl)].
D000293:Adolescent; D000367:Age Factors; D000569:Americas; D001519:Behavior; D001938:Brazil; D003267:Contraception; D003268:Contraception Behavior; D003625:Data Collection; D003710:Demography; D003906:Developing Countries; D005193:Family Planning Services; D005298:Fertility; D019359:Knowledge; D007843:Latin America; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D011253:Pregnancy in Adolescence; D011275:Pregnancy, Unwanted; D012106:Research; D012494:Sampling Studies; D012736:Sex Education; D012725:Sexual Behavior; D013020:South America
Adolescent Pregnancy; Adolescents; Adolescents, Female; Age Factors; Americas; Behavior; Brazil; Contraception; Contraceptive Usage; Demographic Factors; Developing Countries; Family Planning; Fertility; Knowledge; Latin America; Literature Review; Population; Population Characteristics; Population Dynamics; Pregnancy, Unwanted; Reproductive Behavior; Research Methodology; Sampling Studies; Sex Behavior; Sex Education; South America; Studies; Surveys; Youth
Gravidez na adolescencia. pt 1.  conduta frente a anticoncepcao e ao sexo.