Mangel AW, Lothman K. Pulse synchronized contractions (PSCs): a call to action - Editorial. Open J Cardiol Heart Dis. 2018 Jan 29;1(2).
Fondell E, Lagerros YT, Sundberg CJ, Lekander M, Balter O, Rothman KJ, Balter K. Physical activity, stress, and self-reported upper respiratory tract infection. Med Sci Sports Exerc. 2011 Feb 1;43(2):272-9.