1 Department of Cardiology, Rambam Medical Center, Haifa, Israel.
2 The Lloyd Rigler Sleep Apnea Research Laboratory Unit of Anatomy and Cell Biology, The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.
3 The Lloyd Rigler Sleep Apnea Research Laboratory Unit of Anatomy and Cell Biology, The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel. Electronic address: peretzl@technion.ac.il.