TY  - RPRT
TI  - Don't panic, just pass another endoscope.
AU  - P C Chen
PY  - 1999
DO  - 10.1016/s0016-5107(99)80045-5
UR  - https://pubmed.ncbi.nlm.nih.gov/10536378/
ID  - 10536378
ER  -