Affiliation: | (1) Department of Paediatrics, Juntendo University of Internal Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113, Japan;(2) Division of Cardiology Department of Internal Medicine, Juntendo University of Internal Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113, Japan;(3) Department of Paediatrics, Juntendo Urayasu Hospital, 2-1-1 Tomioka, Urayasu City, Chiba, 272-01, Japan |