| web | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6794697/ | 
| author | Theodore Rokkas, Javier P Gisbert | 
| publication | United European Gastroenterol J | 
| date | 2019-05-27 | 
| web | Theodore Rokkas, Javier P Gisb... | United European Gastroenterol ... | 2019-05-27 | 
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