1. Department of Biostatistics, The University of Kansas Medical Center, Kansas City, KS, USA
2. Unit of Pharmacogenetics and Clinical Psychopharmacology, Centre for Psychiatric Neurosciences, Department of Psychiatry, Lausanne University, Hospital of Cery, Prilly-Lausanne, Switzerland
3. Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
4. Mental Health Research Center at Eastern State Hospital, Lexington, KY, USA