1. Department of General Surgery, Soroka University Medical Center, Beer Sheva, Israel
2. Lung Clinic, Soroka University Medical Center, Beer Sheva, Israel
3. Department of Clinical Biochemistry and Pharmacology, Soroka University Medical Center, and Ben-Gurion University of the Negev, Faculty of Health Sciences, Beer Sheva, Israel
4. Department of Psychiatry, University of Michigan, Ann Arbor
5. Department of Oncology, Soroka University Medical Center, Beer Sheva, Israel.