Five-year point prevalence survey of healthcare-associated infections and antimicrobial use in a Japanese university hospital oleh H. Morioka, M. Iguchi, N. Tetsuka, F. Kinoshita, Y. Tomita, D. Kato, A. Hirabayashi, A. Matsumoto, K. Oka, H. Kato, T. Inagaki, Y. Kato, K. Kitagawa, K. Ichikawa, Y. Kouyama, N. Kawamura, Y. Toyodome, N. Adachi, Y. Ito, T. Yagi