Metabolite ratios as potential biomarkers for type 2 diabetes: a DIRECT study. by Molnos, S, Wahl, S, Haid, M, Eekhoff, E, Pool, R, Floegel, A, Deelen, J, Much, D, Prehn, C, Breier, M, Draisma, H, van Leeuwen, N, Simonis-Bik, A, Jonsson, A, Willemsen, G, Bernigau, W, Wang-Sattler, R, Suhre, K, Peters, A, Thorand, B, Herder, C, Rathmann, W, Roden, M, Gieger, C, Kramer, M, van Heemst, D, Pedersen, H, Gudmundsdottir, V, Schulze, M, Pischon, T, de Geus, E, Boeing, H, Boomsma, D, Ziegler, A, Slagboom, P, Hummel, S, Beekman, M, Grallert, H, Brunak, S, McCarthy, M, Gupta, R, Pearson, E, Adamski, J, 't Hart, L