1 Institute for Pain Medicine, Rambam Health Care Campus, Haifa, Israel; Department of Family Medicine, Clalit Health Services, Haifa and Western Galilee District, Israel; Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel.
2 Institute of Pain Medicine, Department of Anesthesia and Critical Care Medicine, Tel Aviv Sourasky Medical Center, Tel-Aviv, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
3 Institute for Pain Medicine, Rambam Health Care Campus, Haifa, Israel; Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel.
4 Institute of Pain Medicine, Department of Anesthesia and Critical Care Medicine, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel. Electronic address: urihochberg@hotmail.com.