Volta, Umberto, Giacomo Caio, Francesco Tovoli, and Roberto De Giorgio. “Non-Celiac Gluten Sensitivity: An Emerging Syndrome With Many Unsettled Issues”. Italian Journal of Medicine 8, no. 4 (December 19, 2013): 225–231. Accessed May 5, 2024. https://www.italjmed.org/ijm/article/view/itjm.2013.461.