TY  - RPRT
TI  - Arrhythmias during upper gastrointestinal endoscopy.
AU  - P K Mathew
AU  - F V Ona
AU  - K Damevski
AU  - W A Wallace
PY  - 1979
DO  - 10.1177/000331977903001207
UR  - https://pubmed.ncbi.nlm.nih.gov/533013/
ID  - 533013
ER  -