K Maeno1, S Fukuda2, T Oguri2, A Niimi2. 1. Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan. Electronic address: kmaeno@med.nagoya-cu.ac.jp. 2. Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.