1 Department of Hematology National Hospital Organization Iwakuni Clinical Center Iwakuni Japan.
2 Department of Hematology, Oncology and Respiratory Medicine Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Kita-ku Japan.
3 Department of Pathology National Hospital Organization Iwakuni Clinical Center Iwakuni Japan.
4 Department of Respiratory Medicine National Hospital Organization Iwakuni Clinical Center Iwakuni Japan.