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Change in body composition in ultra-endurance athletes competing in swimming, cycling, running, and triathlon. a = [25], b = [24], c = [26], d = [28], e = [32], f = [33], g = [11], h = [51], i = [34], j = [35], k = [37], l = [46], m = [48], n = [52], o = [39], p = [40], q = [53], r = [13], s = [42], t = [54], u = [55], v = [56].
