TY  - RPRT
TI  - Proctoscopy and sigmoidoscopy.
AU  - D J Ellis
AU  - P G Bevan
PY  - 1980
DO  - 10.1136/bmj.281.6237.435
UR  - https://pubmed.ncbi.nlm.nih.gov/7427305/
ID  - 7427305
ER  -