Third world programs confront adolescent fertility.
D000293:Adolescent; D000367:Age Factors; D001118:Argentina; D002677:Chile; D003105:Colombia; D003364:Costa Rica; D003710:Demography; D004493:Education; D005298:Fertility; D006166:Guatemala; D008800:Mexico; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D012098:Reproduction; D012736:Sex Education; D012725:Sexual Behavior
Adolescent Pregnancy; Adolescents; Adolescents, Female; Adolescents, Male; Age Factors; Argentina; Chile; Colombia; Costa Rica; Demographic Factors; Education; Family Planning Education; Fertility; Guatemala; Mexico; Population; Population Characteristics; Population Dynamics; Pregnancy; Reproduction; Reproductive Behavior; Youth