Affiliation: | 1. Department of Respiratory Medicine, Maebashi Red Cross Hospital 3-21-36,Asahi-cho, Maebashi, Gunma 371-0014, Japan;Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Showa-machi, Maebashi, Gunma 371-8511, Japan 2. Department of Respiratory Medicine, Maebashi Red Cross Hospital 3-21-36,Asahi-cho, Maebashi, Gunma 371-0014, Japan 3. Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Showa-machi, Maebashi, Gunma 371-8511, Japan |