Steinberg S., de Jong S., Andreassen O.A., Werge T., Børglum A.D.,Mors O., Mortensen P.B., Gustafsson O., Costas J., PietiläinenO.P.H., ... Collier D.A., St Clair D., Rietschel M., Cichon S.,Stefansson H., Rujescu D., Stefansson K. Common variants at VRK2and TCF4 conferring risk of schizophrenia. Here, TCF4 is linked to schizophrenia.