TY  - RPRT
TI  - How should endoscopic accessories be selected: trial or error?
AU  - M A Narain
AU  - R Cockel
PY  - 2000
DO  - 10.1136/gut.46.3.305
UR  - https://pubmed.ncbi.nlm.nih.gov/10673286/
ID  - 10673286
ER  -