Sexual behaviour of young people.
D000293:Adolescent; D000349:Africa; D017954:Africa South of the Sahara; D000354:Africa, Western; D000367:Age Factors; D000569:Americas; D001208:Asia; D001210:Asia, Southeastern; D001519:Behavior; D002489:Central America; D003710:Demography; D003906:Developing Countries; D004194:Disease; D005202:Asia, Eastern; D005298:Fertility; D006166:Guatemala; D006262:Health; D006302:Health Services Research; D007239:Infections; D007390:International Agencies; D007723:Korea; D007843:Latin America; D009549:Nigeria; D009656:North America; D009938:Organizations; D010679:Philippines; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D011253:Pregnancy in Adolescence; D011275:Pregnancy, Unwanted; D018456:Reproductive Medicine; D012106:Research; D012309:Risk-Taking; D012725:Sexual Behavior; D012749:Sexually Transmitted Diseases; D013785:Thailand; D014480:United Nations; D014744:Vietnam
Action Research; Adolescent Pregnancy; Adolescents; Africa; Africa South Of The Sahara; Age Factors; Americas; Asia; Behavior; Central America; Demographic Factors; Developing Countries; Diseases; Eastern Asia; English Speaking Africa; Fertility; Guatemala; Health; Infections; International Agencies; Korea; Korea, Republic Of; Latin America; Nigeria; North America; Organizations; Philippines; Population; Population Characteristics; Population Dynamics; Pregnancy, Unwanted; Premarital Sex Behavior; Reproductive Behavior; Reproductive Health; Reproductive Tract Infections; Research Methodology; Risk Behavior; Sex Behavior; Sexually Transmitted Diseases; Southeastern Asia; Thailand; Un; Viet Nam; Western Africa; Youth