Affiliation: | 1. Respiratory Disease Center, Yokohama City University Medical Center, Yokohama, Japan;2. Department of Pediatrics, Virginia Commonwealth University, Richmond, VA, USA;3. Department of Internal Medicine and Clinical Immunology, Yokohama City University Graduate School of Medicine, Yokohama, Japan;4. Department of Pulmonology, Yokohama City University Graduate School of Medicine, Yokohama, Japan |