[1]
Harden, L. et al. 2004. The effects of an L-methionine combination supplement on symptoms of upper respiratory tract infections and performance in ultramarathon runners before, during and after ultra-endurance exercise. South African Journal of Sports Medicine. 16, 1 (Dec. 2004), 10–16. DOI:https://doi.org/10.17159/2078-516X/2004/v16i1a188.