Lothman KA, Mangel AW. Pulse Synchronized Contractions (PSCs) - Editorial. J Cardiol Cardiovasc Med. 2019 Nov 15;4:199-200. doi: 10.29328/journal.jccm.1001067
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.
Britt DM, Cohen LM, Collins FL, Cohen ML. Cigarette smoking and chewing gum: response to a laboratory-induced stressor. Health Psychol. 2001 Sep 1;20(5):361-8.