1. Gifu International Institute of Biotechnology, Yagi Memorial Park, Mitake, Gifu, Japan,
2. Department of Paediatrics, Nagoya First Red Cross Hospital, Nagoya, Japan,
3. Department of Infectious Disease, Nagoya University School of Medicine, Nagoya, Japan,
4. Institute of Applied Biochemistry, Yagi Memorial Park, Mitake, Gifu, Japan