Antimicrobial resistance and AmpC production in ESBL-producing Klebsiella pneumoniae and Klebsiella quasipneumoniae: A retrospective study in Japanese clinical isolates. - Watanabe, Naoki; Watari, Tomohisa; Otsuka, Yoshihito; Ito, Masahiko; Yamagata, Kazufumi; Fujioka, Miyuki (PLoS ONE, 2024)