title: [The problem of estimating the annual number of induced abortions in Poland, 1951-1980].
authors.forename: K M
authors.initials: KM
authors.lastname: Szamotulska
mesh_terms: D000028:Abortion, Induced; D019049:Developed Countries; D005060:Europe; D005061:Europe, Eastern; D005193:Family Planning Services; D008722:Methods; D011044:Poland; D012106:Research; D013223:Statistics as Topic
keywords: Abortion, Induced; Developed Countries; Eastern Europe; Estimation Technics; Europe; Family Planning; Fertility Control, Postconception; Methodological Studies; Poland; Research Methodology