Effect of intrauterine contraceptive devices upon human uterine contractility.
D001942:Breast Feeding; D002404:Catheterization; D005260:Female; D006801:Humans; D007223:Infant; D007434:Intrauterine Devices / Q000009:adverse effects*; D008365:Manometry; D008598:Menstruation; D009119:Muscle Contraction; D009120:Muscle Cramp; D010298:Parity; D011247:Pregnancy; D013997:Time Factors; D014599:Uterus / Q000502:physiology*