[Status and work improvement of obstetrical centers in the health protection of rural workers].
D008427:Maternal Health Services / Q000592:standards; D009729:Nursing; D009787:Occupational Medicine; D012423:Rural Health; D014586:USSR
O sostoianii i sovershenstvovanii raboty fel'dshersko-akusherskikh punktov v okhrane zdoriv'ia sel'skikh truzhenikov.