@article {421, editor = {,}, title = {Gastroenterology}, volume = {2}, number = {5}, pages = {421--422}, year = {2002}, doi = {10.7861/clinmedicine.2-5-421}, publisher = {Royal College of Physicians}, issn = {1470-2118}, URL = {https://www.rcpjournals.org/content/2/5/421}, eprint = {https://www.rcpjournals.org/content/2/5/421.full.pdf}, journal = {Clinical Medicine} }