The examiner's learning effect and its influence on the quality of endoscopic ultrasonography in carcinoma of the esophagus and gastric cardia

Author: Schlick T.   Heintz A.   Junginger Th.  

Publisher: Springer Publishing Company

ISSN: 0930-2794

Source: Surgical Endoscopy, Vol.13, Iss.9, 1999-09, pp. : 894-898

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