Nimiönäytöllä myös: Department of Microbiology, National Public Health Institute, Helsinki, Finland, and Department of Otorhinolaryngology, University of Helsinki
Tekstiä
Tiivistelmäosa. - Department of Microbiology, National Public Health Institute, Helsinki, Finland, and Department of Otorhinolaryngology, University of Helsinki
Nimiösivulla myös: Department of Microbiology, National Public Health Institute, Helsinki, Finland, and Department of Otorhinolaryngology, University of Helsinki
Tiivistelmä ja 4 erip. - Nimiösivulla myös: Department of Microbiology, National Public Health Institute, Helsinki, Finland, and Department of Otorhinolaryngology, University of Helsinki