OI, M <br/><br/>
The location of duodenal ulcer.  [electronic resource] 

 -  Gastroenterology  Jan 1959 
 - 60-4 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0016-5085 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Duodenal Ulcer<br/>Humans<br/>Peptic Ulcer