TY  - RPRT
TI  - [Some problems during esophagogastroduonenoscopy for elderly patients].
AU  - Yasuharu Yamaguchi
AU  - Shin'ichi Takahashi
PY  - 2002
UR  - https://pubmed.ncbi.nlm.nih.gov/12187747/
ID  - 12187747
ER  -