. 2021 Sep 16;5(9):e30819. doi: 10.2196/30819
©Kan Yamagami, Akihiro Nomura, Mitsuhiro Kometani, Masaya Shimojima, Kenji Sakata, Soichiro Usui, Kenji Furukawa, Masayuki Takamura, Masaki Okajima, Kazuyoshi Watanabe, Takashi Yoneda. Originally published in JMIR Formative Research (https://formative.jmir.org), 16.09.2021.
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Figure 2.
Study flowchart. JCHO: Japan Community Health Care Organization; PCR: polymerase chain reaction.