Hidenori Toyoda Takashi Kumada Yasuhiro Hisanaga
10.14309/crj.2014.7
ACG Case Rep J
2014 Jan 10;1(2):79-81.
CC BY-NC-ND
https://pubmed.ncbi.nlm.nih.gov/26157831/
Case Reports
PMC4435282
26157831
Transnasal Endoscope Locked in a Bent Position Causing Difficult Withdrawal
2014