TY  - RPRT
TI  - Colonoscopy: technique and training methods.
AU  - H Shinya
AU  - M Cwern
AU  - R Karlstadt
PY  - 1982
DO  - 10.1016/s0039-6109(16)42837-9
UR  - https://pubmed.ncbi.nlm.nih.gov/7123461/
ID  - 7123461
ER  -