title: Etiology of community-acquired pneumonia requiring hospitalization in Japan.
authors: N
authors: N
authors: Miyashita
authors: H
authors: H
authors: Fukano
authors: Y
authors: Y
authors: Niki
authors: T
authors: T
authors: Matsushima
authors: N
authors: N
authors: Okimoto
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D017714:Community-Acquired Infections / Q000209:etiology / Q000382:microbiology*; D005260:Female; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D011014:Pneumonia / Q000453:epidemiology / Q000382:microbiology*