[Pregnancy in female workers in steel plants living in an agricultural region].
D000497:Alloys; D005260:Female; D005865:Gestational Age; D006801:Humans; D009787:Occupational Medicine; D009790:Occupations; D010298:Parity; D011044:Poland; D011247:Pregnancy; D012424:Rural Population
D000497:Alloys
Przebieg ciazy u pracownic przemysłu hutniczego, mieszkanek okregu rolniczego.