Establishing the safeness of gluten-free nourishment for laboratory animals Yu.V. Ushakova, G.E. Rysmukhambetova, I.V. Ziruk, V.V. Frolov and K.A. Grandonyan E3S Web of Conf., 222 (2020) 03013 Published online: 22 December 2020 DOI: 10.1051/e3sconf/202022203013