Incidence of poliomyelitis in pregnancy; its relation to maternal age, parity and gestational period.
D005260:Female; D006801:Humans; D015994:Incidence; D008423:Maternal Age; D010298:Parity; D011051:Poliomyelitis; D011247:Pregnancy; D011248:Pregnancy Complications
POLIOMYELITIS/in pregnancy; PREGNANCY/complications