SNP and haplotype analysis of a novel tryptophan hydroxylase isoform (TPH2) gene provide evidence for association with major depression. - Zill,P.; Baghai,T.; Zwanzger,P.; Schule,C.; Eser,D.; Rupprecht,R.; Moller,H.; Bondy,B.; Ackenheil,M. (Mol Psychiatry, 2004)