McGrath CL, Glatt SJ, Sklar P, Le-Niculescu H, Kuczenski R, Doyle AE, Biederman J, Mick E, Faraone SV, Niculescu AB, Tsuang MT. Evidence for genetic association of RORB with bipolar disorder. BMC Psychiatry. 2009 Nov 12; 9:70.