1. Department of Medical Biology, Kochi Medical School, Nankoku City, Kochi, Japan
2. Departments of Medical Biology and Pediatrics, Kochi Medical School, Nankoku City, Kochi, Japan
3. Medical Research Center, Kochi Medical School, Nankoku City, Kochi, Japan
4. Department of Medical Biology and Clinical Laboratory, Kochi Medical School, Nankoku City, Kochi, Japan
5. Radioisotope Center, Kochi Medical School, Nankoku City, Kochi, Japan
6. Third Department of Internal Medicine, Miyazaki Medical College, Miyazaki, Japan
7. Department of Immunology, Saga Medical School, Saga City, Japan
8. Department of Preventive Medicine School of Medicine, The University of Tokyo, Tokyo, Japan.
9. Deceased. Department of Pediatrics, Kochi Medical School, Nankoku City, Kochi, Japan
10. Department of Immunology, Kochi Medical School, Nankoku City, Kochi, Japan
11. Immunobiology and Cancer Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma
12. Department of Medical Biology and Medical Research Center, Kochi Medical School, Nankoku City, Kochi, Japan