Serotype distribution and penicillin resistance of Streptococcus pneumoniae isolates from nasopharynx in young children attending day care in Japan
—環境因子としての保育園の現状とその対応—

Makoto Ito
2011 Pediatric Otorhinolaryngology Japan  
doi:10.11374/shonijibi.32.254 fatcat:gkxiqhvwhffctacmronqj4z65u