title: [Medical-demographic risks in family formation and possibilities for their medical prophylaxis].
authors.forename: D
authors.initials: D
authors.lastname: Vasilev
mesh_terms: D001695:Biology; D002031:Bulgaria; D003267:Contraception; D003268:Contraception Behavior; D003695:Delivery of Health Care; D003710:Demography; D019049:Developed Countries; D005060:Europe; D005061:Europe, Eastern; D005191:Family Characteristics; D005193:Family Planning Services; D005298:Fertility; D005313:Fetal Death; D006262:Health; D006296:Health Services; D007246:Infertility; D008511:Medicine; D009026:Mortality; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D012098:Reproduction; D012106:Research; D017678:Sex Distribution; D012737:Sex Factors; D012744:Sex Ratio; D012725:Sexual Behavior
keywords: Biological Characteristics; Biology; Bulgaria; Contraception; Contraception Failure; Contraceptive Usage; Delayed Childbearing; Delivery Of Health Care; Demographic Factors; Developed Countries; Eastern Europe; Europe; Family And Household; Family Characteristics; Family Planning; Family Size--determinants; Fertility; Fetal Death; Health; Health Services; Infertility; Medicine; Mortality; Population; Population At Risk; Population Characteristics; Population Dynamics; Pregnancy, Planned; Reproduction; Reproductive Behavior; Research Methodology; Sex Distribution; Sex Factors; Sex Ratio