Hasegawa, K., Chiba, N., Kobayashi, R., Murayama, S. Y., Iwata, S., Sunakawa, K., & Ubukata, K. (2004). Rapidly Increasing Prevalence of β-Lactamase-Nonproducing, Ampicillin-Resistant Haemophilus influenzae Type b in Patients with Meningitis. American Society for Microbiology.

Hasegawa, Keiko, Naoko Chiba, Reiko Kobayashi, Somay Y. Murayama, Satoshi Iwata, Keisuke Sunakawa, e Kimiko Ubukata. Rapidly Increasing Prevalence of β-Lactamase-Nonproducing, Ampicillin-Resistant Haemophilus Influenzae Type B in Patients With Meningitis. American Society for Microbiology, 2004.

Hasegawa, Keiko, et al. Rapidly Increasing Prevalence of β-Lactamase-Nonproducing, Ampicillin-Resistant Haemophilus Influenzae Type B in Patients With Meningitis. American Society for Microbiology, 2004.