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2025	Severe Invasive Pneumococcal Infection With Multiple Abscesses Caused by a Less Virulent Serotype 1 Pneumococcus: A Case Report Cureus Takae Okuno, Megumi Hamaguchi, Amano Yoshihiro, Mika Nakao, Takeshi Isobe
2023	A Retrospective Study of Pneumococcal Pneumonia in Hospitalized Patients Aged ≥65 Years in Izumo, Japan: 2010 to 2014 International Journal of General Medicine Megumi Hamaguchi, Yukari Tsubata, Ken Yoshihara, Mika Nakao, Yoshihiro Amano, Kazuhisa Nakashima, Takamasa Hotta, Tamio Okimoto, Shunichi Hamaguchi, Akihisa Sutani, Takeshi Isobe
2022	The Role of Health Information Technology in Pneumococcal Vaccination Uptake Among Adults with Heart Disease Telemedicine and e-Health Onoriode Kesiena, Joseph Atarere, Shreyas Singireddy, Ademayowa Ademiluyi, Oluwaseun Famojuro
2022	Mortality changes for patients with pneumococcal pneumonia from 2012 to 2017 in Japan Journal of Infection and Chemotherapy Shingo Noguchi, Kazuhiro Yatera, Keiji Muramatsu, Yoshihisa Fujino, Shinya Matsuda, Hiroshi Mukae
2022	Seasonal variation in emergent hemodialysis initiation in the late elderly: A single‐center study Hemodialysis International Suguru Takayama, Tsutomu Sakurada, Yugo Shibagaki, Naohiko Imai
2021	Estimated impact of the pneumococcal conjugate vaccine on pneumonia mortality in South Africa, 1999 through 2016: An ecological modelling study PLOS Medicine Jackie Kleynhans, Stefano Tempia, Kayoko Shioda, Anne von Gottberg, Daniel M. Weinberger, Cheryl Cohen
2021	Interrupted time-series analyses of routine vaccination program for elderly pneumonia patients in Japan; an ecological study using aggregated nationwide inpatient data Human Vaccines & Immunotherapeutics Koichi Kobayashi, Taisuke Jo, Wataru Mimura, Maho Suzukawa, Nobuharu Ohshima, Goh Tanaka, Manabu Akazawa, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Takahide Nagase, Hideaki Nagai
2021	Current situation and need for prevention of invasive pneumococcal disease and pneumococcal pneumonia in 6- to 64-year-olds in Japan Journal of Infection and Chemotherapy Naruhiko Ishiwada
2020	The estimated impact of the 5-year national vaccination program on the trend of 23-valent pneumococcal polysaccharide vaccine vaccination rates in the elderly in Japan, 2009–2018 Journal of Infection and Chemotherapy Toshio Naito, Mai Suzuki, Kazutoshi Fujibayashi, Akio Kanazawa, Hiromizu Takahashi, Hirohide Yokokawa, Akira Watanabe
2020	Pneumococcal vaccination reduces in-hospital mortality, length of stay and medical expenditure in hospitalized elderly patients Journal of Infection and Chemotherapy Toshio Naito, Mai Suzuki, Akio Kanazawa, Hiromizu Takahashi, Kazutoshi Fujibayashi, Hirohide Yokokawa, Ryohei Kuwatsuru, Akira Watanabe
2019	Predicting the Epidemiological Dynamics of Lung Cancer in Japan Journal of Clinical Medicine Takayuki Yamaguchi, Hiroshi Nishiura
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