Börsch, G <br/><br/>
[Seasonal variations in the incidence of duodenal ulcer: fact, artifact or fiction?].  [electronic resource] 

 -  Zeitschrift fur Gastroenterologie  Aug 1986 
 - 434-7 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0044-2771 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cross-Sectional Studies<br/>Duodenal Ulcer--epidemiology<br/>Germany, West<br/>Humans<br/>Seasons