TY  - RPRT
TI  - Flexible sigmoidoscopy as a mass screening tool.
AU  - W S Atkin
PY  - 1998
DO  - 10.1097/00042737-199803000-00005
UR  - https://pubmed.ncbi.nlm.nih.gov/9585024/
ID  - 9585024
ER  -