[Relations between intracavitary and stetho-acoustic pressor changes induced by the Valsalva maneuver in Botollo's duct].
D006328:Cardiac Catheterization; D004373:Ductus Arteriosus; D006326:Heart Auscultation; D011312:Pressure; D014636:Valsalva Maneuver
DUCTUS ARTERIOSUS; HEART AUSCULTATION; HEART CATHETERIZATION