title: [Methodology of studying and preventing maternal morbidity and mortality].
authors: Z Z
authors: ZZ
authors: Tokova
mesh_terms: D005260:Female; D006801:Humans; D008428:Maternal Mortality; D008429:Maternal Welfare; D011247:Pregnancy; D012307:Risk Factors; D014586:USSR
vernacular_title: Metodologiia izucheniia i profilaktiki materinskoĭ zabolevaemosti i smertnosti.