WESTMAN, A The recording of uterine contractions by means of insufflation of gas through the cervix. [electronic resource] - Acta obstetricia et gynecologica Scandinavica 1959 - 197-202 p. digital Publication Type: Journal Article ISSN: 0001-6349 Standard No.: 10.3109/00016345909157977 doi Subjects--Topical Terms: Cervix UteriFemaleHumansInsufflationPregnancyUterine ContractionUterus--physiology