1 Department of Psychiatry, Sheba Medical Center, Ramat Gan 52621, Israel; Department of Psychiatry, Sackler School of Medicine, Tel Aviv University, Ramat Aviv 69978, Israel.
2 Department of Psychiatry, Sheba Medical Center, Ramat Gan 52621, Israel; Department of Psychiatry, Sackler School of Medicine, Tel Aviv University, Ramat Aviv 69978, Israel. Electronic address: mweiser@netvision.net.il.