Chang, F Y <br/><br/>
Duodenal ulcer is a multifactorial disorder--the role of pepsinogen I.  [electronic resource] 

 -  South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde  Apr 1993 
 - 264-6 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0256-9574 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Duodenal Ulcer--blood<br/>Female<br/>Humans<br/>Male<br/>Middle Aged<br/>Pepsinogens--blood<br/>Risk Factors<br/>Smoking--blood