CD79A and celiac disease: This is consistent with two other studies testing Simtomax in high risk groups performed by Benkebil et al. in 2013 [26] (100 % sensitivity for coeliac disease in a high risk population) and Bienvenu et al. in 2014 [27] (100 % sensitivity and NPV for coeliac disease in IgA deficient children, median age 8.4).