title: [Spontaneous and induced abortion.  An epidemiological study].
authors.forename: M H
authors.initials: MH
authors.lastname: Silveira
mesh_terms: D000028:Abortion, Induced; D000022:Abortion, Spontaneous; D000367:Age Factors; D000569:Americas; D001938:Brazil; D003710:Demography; D003906:Developing Countries; D004194:Disease; D004812:Epidemiologic Methods; D005193:Family Planning Services; D015994:Incidence; D007843:Latin America; D008428:Maternal Mortality; D009026:Mortality; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D011247:Pregnancy; D011248:Pregnancy Complications; D012098:Reproduction; D012106:Research; D012107:Research Design; D013020:South America