TY  - RPRT
TI  - Conventional colonoscopy: technique, indications, limits.
AU  - Michael Häfner
PY  - 2006
DO  - 10.1016/j.ejrad.2006.07.034
UR  - https://pubmed.ncbi.nlm.nih.gov/17169521/
ID  - 17169521
ER  -