1. Laboratory of Teratology and Experimental Oncology, Koret School of Veterinary Medicine, Hebrew University of Jerusalem, Rehovot
2. Institute of Biochemistry, Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot
3. Department of Clinical Biochemistry, Rambam Medical Center, Haifa
4. Unit of Gastroenterology, Kaplan Hospital, Rehovot
5. Institute of Oncology, Kaplan Hospital, Rehovot
6. Department of Surgery, Kaplan Hospital, Rehovot
7. Department of Pathology, Kaplan Hospital, Rehovot
8. Department of Laboratories, Laniado Hospital, Netania, Israel