1. Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
2. Inflammation and Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
3. Graduate School of Global Environmental Studies, Kyoto University, Kyoto, Japan
4. Department of Health Science, Oita University of Nursing and Health Sciences, Oita 870-1201, Japan