Media type: E-Article Title: Preface Contributor: Yoshida, Yutaka imprint: Elsevier BV, 1997 Published in: International Journal of Pediatric Otorhinolaryngology Language: English DOI: 10.1016/s0165-5876(97)00069-4 ISSN: 0165-5876 Keywords: Otorhinolaryngology ; General Medicine ; Pediatrics, Perinatology and Child Health Origination: Footnote: