Roberts, S. E., Williams, J. G., Yeates, D., & Goldacre, M. J. (2007). Mortality in patients with and without colectomy admitted to hospital for ulcerative colitis and Crohn's disease: Record linkage studies. BMJ Publishing Group Ltd.
استشهاد بنمط شيكاغوRoberts, Stephen E., John G. Williams, David Yeates, و Michael J. Goldacre. Mortality in Patients With and Without Colectomy Admitted to Hospital for Ulcerative Colitis and Crohn's Disease: Record Linkage Studies. BMJ Publishing Group Ltd, 2007.
MLA استشهادRoberts, Stephen E., John G. Williams, David Yeates, و Michael J. Goldacre. Mortality in Patients With and Without Colectomy Admitted to Hospital for Ulcerative Colitis and Crohn's Disease: Record Linkage Studies. BMJ Publishing Group Ltd, 2007.