Alam, F., Chowdhury, H., Mustary, I., Loganathan, B. Julkaisussa Procedia Engineering (2015)
Hurst, R. T., Burke, R. F., Wissner, E., Roberts, A., Kendall, C. B., Lester, S. J., Somers, V., Goldman, M. E., Wu, Q., Khandheria, B. Julkaisussa The American Journal of Cardiology (2010)
American Academy of Pediatrics, Committee on Sports Medicine and Fitness Julkaisussa Pediatrics (2000)