Klassen, M <br/><br/>
[Value of endoscopic studies in prevention and early diagnosis of malignant gastrointestinal tumors].  [electronic resource] 

 -  Vestnik Rossiiskoi akademii meditsinskikh nauk  1998 
 - 7-10 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0869-6047 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Diagnosis, Differential<br/>Endoscopy, Gastrointestinal<br/>Follow-Up Studies<br/>Gastrointestinal Neoplasms--diagnosis<br/>Humans<br/>Middle Aged<br/>Neoplasm Recurrence, Local<br/>Sensitivity and Specificity