Brand EC, Klaassen MAY, Gacesa R, Vich Vila A, Ghosh H, de Zoete MR, Boomsma DI, Hoentjen F, Horjus Talabur Horje CS, van de Meeberg PC, Willemsen G, Fu J, Wijmenga C, van Wijk F, Zhernakova A, Oldenburg B, Weersma RK; Dutch TWIN-IBD consortium and the Dutch Initiative on Crohn and Colitis.Gastroenterology. 2021 May;160(6):1970-1985. doi: 10.1053/j.gastro.2021.01.030. Epub 2021 Jan 19.PMID: 33476671