Quality control in endoscopy : 

 - Berlin ;  New York :  Springer-Verlag,  c1991. 
 - x, 108 p. :  ill. ; 
<br/><br/><label>ISBN: </label>3540548750 (alk. paper) 0387548750 (alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Endoscopy<br/>Endoscopy<br/>Quality Control.