Another test available in Poland is Polycheck® Celiac IgA plus Total IgA and Polycheck® Celiac IgG, which contains human recombinant TG2 antigen, DGP peptides and intrinsic factor IF (for the differential diagnosis of anemia—the main symptom of CD), for the detection of antibodies in the IgG class. This evidence concerns the gene CD79A and Cowden disease.