Editing Duodenum (section)

===Celiac disease===
The [[British Society of Gastroenterology]] guidelines specify that a duodenal biopsy is required for the diagnosis of adult [[celiac disease]]. The biopsy is ideally performed at a moment when the patient is on a gluten-containing diet.<ref>{{cite journal|last1=Ludvigsson|first1=J. F.|last2=Bai|first2=J. C.|last3=Biagi|first3=F.|last4=Card|first4=T. R.|last5=Ciacci|first5=C.|last6=Ciclitira|first6=P. J.|last7=Green|first7=P. H. R.|last8=Hadjivassiliou|first8=M.|last9=Holdoway|first9=A.|last10=van Heel|first10=D. A.|last11=Kaukinen|first11=K.|last12=Leffler|first12=D. A.|last13=Leonard|first13=J. N.|last14=Lundin|first14=K. E. A.|last15=McGough|first15=N.|last16=Davidson|first16=M.|last17=Murray|first17=J. A.|last18=Swift|first18=G. L.|last19=Walker|first19=M. M.|last20=Zingone|first20=F.|last21=Sanders|first21=D. S.|title=Diagnosis and management of adult coeliac disease: Guidelines from the British Society of Gastroenterology|journal=Gut|volume=63|issue=8|year=2014|pages=1210–1228|issn=0017-5749|doi=10.1136/gutjnl-2013-306578|pmid=24917550|pmc=4112432}}</ref>