[Socioeconomic conditions of pregnant women and the incidence of premature labor].
Krasomski
G
G
Gładysiak
A
A
D005260:Female; D006801:Humans; D007752:Obstetric Labor, Premature / Q000453:epidemiology / Q000209:etiology*; D009784:Occupational Diseases / Q000453:epidemiology / Q000209:etiology*; D009790:Occupations; D011044:Poland; D011247:Pregnancy; D012959:Socioeconomic Factors
Warunki społeczno-ekonomiczne kobiet ciezarnych a czestość wystepowania porodów przed terminem.