Peña Yañez, A <br/><br/>
[Lower esophageal ring].  [electronic resource] 

 -  Revista espanola de las enfermedades del aparato digestivo  Apr 1967 
 - 505-16 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0034-9437 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Deglutition Disorders--etiology<br/>Esophageal Stenosis<br/>Esophagoscopy<br/>Humans