Vahil, A <br/><br/>
Asymptomatic PSC--do they really have progressive diseases?  [electronic resource] 

 -  Gastroenterology  Jan 1991 
 - 294-5 p.  digital 
<br/><br/> Publication Type: Comment; Letter 
<br/><br/><label>ISSN: </label>0016-5085 
<br/><br/><label>Standard No.: </label>10.1016/0016-5085(91)90638-2  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cholangitis, Sclerosing--complications<br/>Humans<br/>Selection Bias