TY  - BOOK
AU  - Benedict,Edward B.
TI  - Endoscopy : : as related to diseases of the bronchus, asophagus, stomach, and peritoneal cavity / 
PY  - 1951///
CY  - Baltimore : 
PB  - Williams & Wilkins, 
KW  - Endoscopia
N1  - Incluye bibliografía e índice
ER  -