Role of the "immersion technique" in diagnosing celiac disease with villous atrophy limited to the duodenal bulb Cammarota, G.; Cesaro, P.; La Mura, R.; Martino, A.; Cazzato, A.; Miele, L.; Lupascu, A.; Vecchio, F.M.; Larocca, L.M.; Grieco, A.; Gasbarrini, G. Journal of Clinical Gastroenterology 41(6): 571-575 2007 https://eurekamag.com/research/055/614/055614767.php