Federenko, Y. F., N. N. Neofitov, Y. N. Yaroshenko, and S. K. Denogratov. “Increased Muscle Potassium from Head down Tilt Sleeping of Healthy Subjects During Diminished Muscular Activity”. International Journal of Clinical and Experimental Physiology, Vol. 2, no. 3, June 2015, pp. 157-64, https://ijcep.org/index.php/ijcep/article/view/88.