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. 2022 Jun 29;17(6):e0269535. doi: 10.1371/journal.pone.0269535

Fig 1. Proportion of patients with a telemedicine encounter (from March to December 2020) by 3-digit ZIP code.

Fig 1

Figure based on 2019 ZIP code tabulation area shapefile created by US Bureau and Helathjump data [20]. Map projection based on modification of the US National Atlas Equal Area coordinate reference system. Proportion of patients in the study population with at least one telemedicine encounter during the study period in each 3-digit ZIP code divided into quartiles. Areas with no ZIP code tabulation area code provided by the US Census Bureau include sparsely populated areas and areas such as military facilities.