1. Aliza Ring is the director of the Child and Adolescent Outpatient Clinic at Abarbanel Mental Health Center in Bat Yam, Israel. Her research interests include pervasive developmental disorders, childhood-onset psychoses, and attention-deficit/hyperactivity disorder.
2. Daniel Stein, MD is a lecturer in psychiatry at Sackler School of Medicine, Tel Aviv University, Israel, and the director of the Adolescent Inpatient Department of Abarbanel Mental Health Center in Bat Yam. His research interests include eating disorders, adolescent suicide, and attention-deficit/hyperactivity disorder. Address: Daniel Stein, Abarbanel Mental Health Center, 15 Keren Kayemet Blvd., Bat Yam, Israel 59100.
3. Yoram Barak is a lecturer in psychiatry at Sackler School of Medicine, Tel Aviv University, Israel, and the director of the Psychogeriatric Department at Abarbanel Mental Health Center in Bat Yam. His research interests include dementia, pervasive developmental disorders, and chronobiology.
4. Aharon Teicher works in the Chronobiology Unit, Department of Human Genetics, at Sackler School of Medicine, Tel Aviv University, Israel.
5. Jack Hadjez is the director of the Outpatient Clinic of Lev Hasharon Medical Mental Health Center in Netanya, Israel. His research interests are sleep and depression.
6. Avner Elizur is a full professor of psychiatry at Sackler School of Medicine, Tel Aviv University, Israel, and the director of Abarbanel Mental Health Center in Bat Yam. His research interests include family therapy, impulse control disorders, and organization of medical institutions.
7. Abraham Weizman is a full professor of psychiatry at Sackler School of Medicine, Tel Aviv University, Israel, and the director of the Research Department ofGeha Psychiatric Hospital in Petah Tikva, Israel. His research interests include biological psychiatry and psychophar-macology.