István Bitter, MD., PhD., DSc. is Professor of the Department of Psychiatry and Psychotherapy at Semmelweis University in Budapest, Hungary. A graduate of Semmelweis University, he is board-certified as a Specialist in Neurology, Psychiatry, Psychotherapy, and Clinical Pharmacology. He worked in Austria and Germany, and was visiting professor at the New York University Department of Psychiatry and research scientist at N.S. Kline Institute for Psychiatric Research in the USA. His current research focuses on schizophrenia, ADHD, clinical psychopharmacology, and epidemiology, including the use of "real world data". Dr. Bitter is a founding member of the European Group for Research in Schizophrenia, co-chair of the ECNP Network for Schizophrenia, chair of the EPA Section of Psychopharmacology, and a member of the Executive Board of the National Brain Research Program in Hungary.