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. 2021 Apr 8;117:103777. doi: 10.1016/j.jbi.2021.103777

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Fig. 3 — EHR: Electronic health record; COVID+: Patients testing positive for SARS-CoV-2 during the study period; COVID-: Patients testing negative for SARS-CoV-2 during the study period; Flu 2019: Patients testing positive for influenza during the study period equivalent dates March 1 through June 5, 2019. CPT: Common procedural terminology.