TY  - BOOK
AU  - Cotton Peter B
AU  - Christopher B W
TI  - Practical Gastrointestinal Endoscopy
SN  - 0632027061
U1  - 616.33 
PY  - 1991///
CY  - London
PB  - Blackwell Pub
KW  - Medicine
N1  - Includes Index
ER  -