author = { Yoshida, Yutaka },

title = { Preface },

publisher = {Elsevier BV},

isbn = {0165-5876},

keywords = { Otorhinolaryngology , General Medicine , Pediatrics, Perinatology and Child Health },

year = {1997},

url = { http://slubdd.de/katalog?TN_libero_mab2 }