title: [Social and hygienic problems of hormonal contraception. 2. The place of hormonal contraception in the prophylaxis of unwanted pregnancy].
mesh_terms: D000028:Abortion, Induced; D002031:Bulgaria; D019049:Developed Countries; D005060:Europe; D005061:Europe, Eastern; D005193:Family Planning Services; D011275:Pregnancy, Unwanted
keywords: Abortion, Induced; Bulgaria; Developed Countries; Eastern Europe; Europe; Family Planning; Fertility Control, Postconception; Pregnancy, Unwanted