1. Pathology Center, Iwaki City Medical Center, Iwaki, Fukushima, Japan,
2. Department of Diagnostic Pathology, Fukushima Medical University, School of Medicine, Fukushima, Fukushima, Japan,
3. Department of Dentistry and Oral Surgery, Iwaki City Medical Center, Iwaki, Fukushima, Japan,
4. Department of Applied Chemistry & Biochemistry, National Institute of Technology Fukushima College, Iwaki, Fukushima, Japan,
5. Department of Hematology, Shin Matsudo Central General Hospital, Matsudo, Chiba, Japan