The knowledge and skills needed to perform intestinal ultrasound for inflammatory bowel diseases-an international Delphi consensus survey.

"Declaration of personal interests: Gorm Roager Madsen and Trine Boysen: None to declare. Rune Wilkens: Personal fees from AbbVie, Janssen, Pfizer, Takeda, Alimentiv outside the submitted work. Johan Burisch: Personal fees from AbbVie, grants and personal fees from Janssen‐Cilag, personal fees from Celgene, grants and personal fees from MSD, personal fees from Pfizer, grants and personal fees from Takeda, grants and personal fees from Tillots Pharma, personal fees from Samsung Bioepis, grants and personal fees from Bristol Myers Squibb, grants from Novo Nordisk, personal fees from Pharmacosmos, personal fees from Ferring, personal fees from Galapagos. None of these pertain to the work submitted here. Robert Bryant: reports Grant/Research support/Speaker fees (all paid to employer for research support): AbbVie, Ferring, Janssen, Shire, Takeda, Emerge Health (outside of submitted work); shareholder in Biomebank. Dan Carter: Consulting fees from Takeda, Abbvie, Taro and Lapidot, Speaker fees and/or research support from Takeda, Abbvie, Janssen and Lapidot. Krisztina Gecse: has received grants from Pfizer Inc, Galapagos and Celltrion; consultancy fees from AbbVie, Arena Pharmaceuticals, Galapagos, Gilead, Immunic Therapeutics, Janssen Pharmaceuticals, Novartis, Pfizer Inc., Samsung Bioepis and Takeda and speaker's honoraria from Celltrion, Ferring, Janssen Pharmaceuticals, Novartis, Pfizer Inc, Samsung Bioepis, Takeda and Tillotts. Christian Maaser: consulting and/or speaking fees from: Abbvie, Biogen, Dr. Falk PharmaGmbH, Ferring Arzneimittel GmbH, Galapagos, Gilead, Janssen, MSD Sharp & Dome GmbH, Pfizer, Roche, Samsung, Takeda PharmaGmbH, Vifor Pharma. Giovanni Maconi: reports personal fees from Alfa‐Sigma, Arena Pharmaceuticals, Fresenius‐Kabi, Gilead, Janssen‐Cilag, Roche, outside the submitted work. Kerri Novak: reports advisory board fees from AbbVie, Janssen, Pfizer, Takeda; speaker's fees from AbbVie, Janssen, Takeda, Pfizer; and research support from AbbVie and Takeda. Carolina Palmela: Personal fees from Janssen and Laboratorios Vitoria, outside the submitted work. Leizl Joy Nayahangan, Martin Grønnebæk Tolsgaard: None to declare."