TY  - RPRT
TI  - What does sigmoidoscopy really miss?
AU  - Theodore R Levin
PY  - 2003
DO  - 10.1111/j.1572-0241.2003.07734.x
UR  - https://pubmed.ncbi.nlm.nih.gov/14572589/
ID  - 14572589
ER  -