20 common problems in gastroentology / 
editor, Steven Edmundowicz. 
 - New York :  McGraw-Hill,  2002. 
 - xv, 317p :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>0070220557 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gastrointestinal system--Diseases.<br/>Primary care (Medicine)