Deficient serotonin neurotransmission and depression-like serotonin biomarker alterations in tryptophan hydroxylase 2 (Tph2) loss-of-function mice. - Jacobsen, J P R; Siesser, W B; Sachs, B D; Peterson, S; Cools, M J; Setola, V; Folgering, J H A; Flik, G; Caron, M G (Molecular Psychiatry, 2012)