[Sodium and potassium concentrations in the uterine cervix in cases of protracted labor].
D005260:Female; D006801:Humans; D011188:Potassium / Q000378:metabolism*; D011247:Pregnancy; D011273:Pregnancy, Prolonged; D012964:Sodium / Q000378:metabolism*; D014593:Uterine Inertia / Q000378:metabolism*
D012964:Sodium; D011188:Potassium
Stezenie sodu i potasu w szyjce macicy w porodzie przedłuzonym.