@misc{indiciae6fab22cb854b, title = {Defining ulcer depth in colitis.}, author = {J E Lennard-Jones}, year = {1996}, doi = {10.1016/s0140-6736(96)90800-4}, url = {https://pubmed.ncbi.nlm.nih.gov/8656898/}, note = {Source identifier: 8656898} }