TY  - RPRT
TI  - Training for flexible sigmoidoscopy.
AU  - M A Bowman
AU  - D C Wherry
PY  - 1985
DO  - 10.1016/s0016-5107(85)72212-2
UR  - https://pubmed.ncbi.nlm.nih.gov/4043683/
ID  - 4043683
ER  -