[Prenatal and perinatal care and the incidence of anemia during labor].
D000328:Adult; D000740:Anemia / Q000453:epidemiology*; D005260:Female; D006760:Hospitalization; D006801:Humans; D007743:Labor, Obstetric; D008429:Maternal Welfare; D008875:Middle Aged; D011044:Poland; D011247:Pregnancy; D011250:Pregnancy Complications, Hematologic / Q000453:epidemiology*; D011295:Prenatal Care
Zwiazek miedzy opieka przedporodowa a czestościa niedokrwistości porodowej.