Turano, C., and C. Podella. “L’universo Sconosciuto Del Sistema Nervoso Autonomo: La Teoria Polivagale”. Confinia Cephalalgica Et Neurologica, vol. 29, no. 1, May 2019, pp. 38-42, https://mattioli1885journals.com/index.php/confinia/article/view/8425.