1. Department of Medical Technique Nagoya University Hospital Nagoya Japan
2. Department of Transfusion Medicine Nagoya University Hospital Nagoya Japan
3. Department of Clinical Laboratory Nagoya University Hospital Nagoya Japan
4. Department of Haematology‐Oncology Nagoya University Graduate School of Medicine Nagoya Japan
5. Department of Pathophysiological Laboratory Sciences Nagoya University Graduate School of Medicine Nagoya Japan
6. Department of Haematology National Centre for Geriatrics and Gerontology Obu Japan