1.
Endoscopy
; 43 Suppl 2 UCTN: E151-2, 2011.
Article
in English
| MEDLINE
| ID: mdl-21563057
2.
Endoscopy
; 39 Suppl 1: E253-4, 2007 Feb.
Article
in English
| MEDLINE
| ID: mdl-17957630