TY - GEN AU - Chin,J G AU - Vermariƫn,H AU - van Vollenhoven,E AU - Koops,J AU - Voogd,P J AU - Bruschke,A V TI - Origin of the components of the first heart sound studied by biaxial esophageal phonocardiography SN - 0001-5385 PY - 1988///0908 KW - Echocardiography KW - Esophagus KW - Heart Auscultation KW - Heart Sounds KW - Heart Valves KW - physiology KW - Humans KW - Phonocardiography KW - instrumentation KW - Reference Values N1 - Publication Type: Journal Article ER -