TY  - BOOK
AU  - Cotton , P. B.   .
TI  - Practical Gastrointestinal Endoscopy / 
U1  - 616.30754 
PY  - 1980///
CY  -  : 
PB  - Blackwell Sci. , 
KW  - Gastroenterology
KW  - Medical Science
KW  - Medicine
ER  -