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.
Urrutia I, Aguirre U, Sunyer J, Plana E, Muniozguren N, Martinez-Moratalla J. Changes in the prevalence of asthma in the Spanish cohort of the European Community Respiratory Health Survey (ECRHS-II). Arch. Bronconeumol. 2007 Aug;43(8):425-30.
Burudi EM, Karanja SM, Njue AI, Githiori JB, Ndung'u JM. Establishment of a partly DFMO-sensitive primate model of Trypanosoma rhodesiense sleeping sickness. Acta Trop. 1995 Mar;59(1):71-3.