Hans M. Rollema

Pfizer Global Research and Development, Groton Laboratories, MS 8220-4159, Department of Neuroscience, Eastern Point Road, Groton, CT06340, USA

Jeffrey Sprouse

Pfizer Global Research and Development, Groton Laboratories, MS 8220-4159, Department of Neuroscience, Eastern Point Road, Groton, CT06340, USA

Eric J. L. Griez

Department of Psychiatry and Neuropsychology, University of Maastricht, PO Box 616, 6200 MD Maastricht, The Netherlands

Carlo Faravelli

University of Florence, Department of Neurology and Psychiatry, Viale Morgagni, 85, 50134 Florence, Italy

David J. Nutt

University of Bristol, Psychopharmacology Unit, Dorothy Hodgkin Building, Whiston Street, Bristol BS1 3NY, UK

Joseph Zohar

Ministry of Health, The State of Israel and Department of Psychiatry, Tel Aviv University, Sackler School of Medicine, Tel Hashomer 52621, Tel Aviv, Israel