@misc{indiciae45c28b41532d, title = {[Ulcerative colitis--how can endoscopic observation be improved?].}, author = {R Kiesslich and M Jung and P R Galle and M F Neurath}, year = {2003}, doi = {10.1055/s-2003-40139}, url = {https://pubmed.ncbi.nlm.nih.gov/12817350/}, note = {Source identifier: 12817350} }