@misc{indiciae7da7c0ec1d6e, title = {Colonoscopy and biopsy.}, author = {F A Macrae and P S Bhathal}, year = {1997}, doi = {10.1016/s0950-3528(97)90054-3}, url = {https://pubmed.ncbi.nlm.nih.gov/9192061/}, note = {Source identifier: 9192061} }