BRANTH , S.; HAMBRAEUS , L.; PIEHL-AULIN , K.; ESSÉN-GUSTAVSSON , B.; ÅKERFELDT , T.; OLSSON , R.; STRIDSBERG , M.; RONQUIST , G. Metabolic stress-like condition can be induced by prolonged strenuous exercise in athletes. Upsala Journal of Medical Sciences, v. 114, n. 1, p. 12-25, 12 Jul. 2009.