1. Department of Physical Analysis and Therapeutic Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Hiroshima 734‑8551, Japan
2. Department of Respiratory Medicine, Higashi‑Hiroshima Medical Center, Higashi-Hiroshima, Hiroshima 739‑0041, Japan
3. Department of Respiratory Medicine, Hiroshima City Medical Association‑Administered Hiroshima City Aki Hospital, Hiroshima, Hiroshima 736‑0088, Japan
4. Department of Internal Medicine, Mihara Medical Associations Hospital, Mihara, Hiroshima 723‑0051, Japan
5. Department of Respiratory Medicine, Miyoshi Central Hospital, Miyoshi, Hiroshima 728‑8502, Japan
6. Department of Respiratory Medicine, Tadanoumi Hospital, Takehara, Hiroshima 729‑2316, Japan
7. Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Hiroshima 734‑8551, Japan