title: An unusual source of leak in the anesthesia circuit.
mesh_terms: D000293:Adolescent; D000769:Anesthesia, Inhalation / Q000295:instrumentation*; D000773:Anesthesia, Obstetrical; D004209:Disposable Equipment / Q000592:standards*; D004868:Equipment Failure; D005260:Female; D006801:Humans; D011247:Pregnancy