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International Journal of General Medicine Volume 16, 2023 - Issue
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ORIGINAL RESEARCH

Risk of Underlying Diseases and Effectiveness of Drugs on COVID-19 Inpatients Assessed Using Medical Claims in Japan: Retrospective Observational Study

Shingo Mitsushima1 Center for Field Epidemic Intelligence, Research and Professional Development, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, JapanCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0002-5827-5475
ORCID Icon,
Hiromasa Horiguchi2 Department of Clinical Data Management and Research, Clinical Research Center, National Hospital Organization Headquarters, Meguro-ku, Tokyo, Japan
&
Kiyosu Taniguchi3 Director-General, National Hospital Organization Mie National Hospital, Tsu, Mie, Japan;4 Research Director, The Tokyo Foundation for Policy Research, Minato-ku, Tokyo, JapanORCID Iconhttps://orcid.org/0000-0003-4584-6168
ORCID Icon
Pages 657-672 | Received 02 Nov 2022, Accepted 03 Feb 2023, Published online: 21 Feb 2023

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