Cataldo, Angelo, Antonino Bianco, Antonio Paoli, Dario Cerasola, Saverio Alagna, Giuseppe Messina, Daniele Zangla, and Marcello Traina. “Resting Sympatho-Vagal Balance Is Related to 10 Km Running Performance in Master Endurance Athletes”. European Journal of Translational Myology 28, no. 1 (February 27, 2018). Accessed August 25, 2019. https://www.pagepressjournals.org/index.php/bam/article/view/7051.