MEDLINE Status: Publisher
Issn Electronic: 1471-0528
Recent work supports the concept of an active sphincter in the uterine cervix.
H Feltovich; J-S Vink
Author Information: Intermountain Healthcare, Maternal Fetal Medicine, Utah Valley Hospital, Provo, UT, USA.; Department of Obstetrics and Gynecology, Columbia University Medical Center, New York, NY, USA.
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