CYP4F2 and Cowden disease: ACACB up-regulated in small-bowel strictures of the marmoset,6STEAP1B linked to adult IBD,7DSG1as a serologic marker of complicated CD,8 and CYP4F2 in which the specific polymorphism identified in this study (rs2108622) also has been observed to associate significantly with CD by Costea et al.9