Ticinesi, Andrea, et al. “The Impact of Intestinal Microbiota on Bio-Medical Research: Definitions, Techniques and Physiology of a ‘new frontier’”. Acta Biomedica Atenei Parmensis, vol. 89, no. 9-S, Dec. 2018, pp. 52-59, https://doi.org/10.23750/abm.v89i9-S.7906.