Carpenter, Steven L <br/><br/>
Continuing Medical Education Questions: February 2019.  [electronic resource] 

 -  The American journal of gastroenterology  Feb 2019 
 - 199 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1572-0241 
<br/><br/><label>Standard No.: </label>10.14309/ajg.0000000000000129  doi