1. Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
2. Department of Internal Medicine, Aichi Prefectural Hospital, Okazaki, Aichi, Japan
3. Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
4. Department of Respiratory Medicine and Allergy, Tosei General Hospital, Seto, Aichi, Japan
5. Department of Respiratory Medicine and Allergology, Aichi Medical University, Nagakute, Aichi, Japan
6. Department of Respiratory Medicine, Fujita Health University School of Medicine, Toyoake, Aichi, Japan