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Børsheim E, Tipton KD, Wolf SE, Wolfe RR.Børsheim E, et al. Among authors: tipton kd.Am J Physiol Endocrinol Metab. 2002 Oct;283(4):E648-57. doi: 10.1152/ajpendo.00466.2001.Am J Physiol Endocrinol Metab. 2002.PMID: 12217881Free article.