P4768Targeted metabolomics identifies elevated serotonin levels in carriers of a TCF7L2 diabetes-risk allele. (28th August 2018) - Leiherer, A; Muendlein, A; Geiger, K; Saely, C H; Brandtner, E M; Ebner, J; Larcher, B; Mader, A; Fraunberger, P; Drexel, H