1. Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan;
2. Department of Allergy and Rheumatology, Nippon Medical School Graduate School of Medicine, Tokyo, Japan;
3. Department of Pulmonology, Yokohama City University Graduate School of Medicine, Yokohama, Japan;
4. Program in Genomics of Differentiation, NICHD, National Institutes of Health, Bethesda, MD, USA