TY  - RPRT
TI  - A supervised training program in flexible sigmoidoscopy: evaluating skills from residency training to clinical practice.
AU  - R B Lewan
AU  - W N Baskin
AU  - M W Sharon
AU  - R L Greenlaw
AU  - J T Frakes
AU  - D E Vidican
UR  - https://pubmed.ncbi.nlm.nih.gov/2721847/
ID  - 2721847
ER  -