Chin, J G <br/><br/>
Origin of the components of the first heart sound studied by biaxial esophageal phonocardiography.  [electronic resource] 

 -  Acta cardiologica  1988 
 - 283-7 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0001-5385 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Echocardiography<br/>Esophagus<br/>Heart Auscultation<br/>Heart Sounds<br/>Heart Valves--physiology<br/>Humans<br/>Phonocardiography--instrumentation<br/>Reference Values