Michael B First

Professor of Clinical Psychiatry at Columbia University and the Psychiatric Institute of New York. He is an expert on the DSM-IV-TR classification and is playing a key role in the development of DSM-V. 

Allan Tasman

Professor and Chairman of the Department of Psychiatry and Behavioral Sciences at the University of Louisville School of Medicine, Kentucky, USA. Professor Tasman is Past President of the American Psychiatric Association and President of the Pacific Rim College of Psychiatrists. He is a world-renowned psychiatric leader and educator and is Secretary for Education of the World Psychiatric Association, responsible for all of the association's worldwide education programmes and initiatives.