Makoto Ito   Kazuko Ito   Tomokazu Yoshizaki   Toshiro Nishimura   Takaki Miwa   Mitsuru Furukawa   
Otology and Neurotology 23(3) 349-352 2002年
Objective: A rapid increase of penicillin resistance in Streptococcus pneumoniae has recently been reported in most areas of the world. Penicillin-resistant S. pneumoniae and other resistant bacteria are the principal causes of recurrent acute oti...