3Cooper E R, Ferrara M S, Broglio S P. Exertional heat illness and environmental conditions during a single football season in the southeast[J]. J Athl Train, 2006, 41(3): 332-336.
4Guazzi M. Alveolar gas diffusion abnormalities in heart failure[ J]. J Card Fail, 2008, 14(8) : 695 -702.
5Brignole M, Albonip P, Benditt DG, et al. Guidelines on management (diagnosis and treatment)of syncope-update 2004 [J]. Eur Heart. 2004,25 : 2054 -2072.
