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Each circle represents one individual (white = RBCs, gray = muscle, and black = plasma). The equation, the coefficient of determination, and the best-fit curve are shown for the significant models (muscle F1,72 = 103.80, P < 0.001; plasma F1,72 = 69.51, P < 0.001; and RBCs F1,72 = 90.43, P < 0.001).
