?url_ver=Z39.88-2004&rft_id=MTMT%3A31355961+10.1177%2F2050640620934911&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=+J-Matthias+L%C3%B6hr&rft.aufirst=L%C3%B6hr&rft.aulast=J-Matthias&rft.atitle=European+Guideline+on+IgG4-related+digestive+disease+-+UEG+and+SGF+evidence-based+recommendations&rft.issue=6&rft.volume=8&rft.pages=637-666&rft.title=UNITED+EUROPEAN+GASTROENTEROLOGY+JOURNAL&rft.date=2020&rft.issn=2050-6406&rft.genre=article