Electrocardiographic changes in 1000 highly trained junior elite athletes

Sharma, S., Whyte, G., Elliot, P., Padula, M., Kaushal, R., Mahon, N. and McKenna, W.J.
“Electrocardiographic changes in 1000 highly trained junior elite athletes.”
British Journal of Sports Medicine 1999 Vol.33 Issue 5, p319-324  [Abstract]  [Full Text]