KCNH2 and schizophrenia: All of the five KCNH2-SNPs with an impact on CADF parameters in our patient cohort have been previously reported by Huffaker et al. to be associated with schizophrenia and with the expression of a truncated KCNH2 transcript, referred to as KCNH2-3.1, in the postmortem hippocampus of both schizophrenia patients and healthy subjects.