1Allergy Center, National Center for Child Health and Development, Tokyo, Japan.
2Department of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo, Japan.
3Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara Hospital, Kanagawa, Japan.
4Graduate School of Health Science, Matsumoto University, Nagano, Japan.
5Department of Hygiene, Kitasato University School of Medicine, Kanagawa, Japan.
6Pharmacokinetics and Bioanalysis Center, Shin Nippon Biomedical Laboratories Ltd., Wakayama, Japan.
7Department of Environmental and Preventive Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan.
8Division of Biostatistics, Department of Data Management, Center for Clinical Research and Development, National Center for Child Health and Development, Tokyo, Japan.
✉Correspondence to Kiwako Yamamoto-Hanada. Allergy Center, National Center for Child Health and Development, 2-10-1, Okura, Setagaya-ku, Tokyo 157-8535, Japan. Tel: +81-3-3416-0181, Fax: +81-3-3416-2222, yamamoto-k@ncchd.go.jp
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