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In this January 11, 2021, file photo, Florence Mullins, 89, sits in a chair as a family member holds her place in a long line to receive a COVID-19 vaccine at Fair Park in Dallas. Uncertainty over the pace of federal COVID-19 vaccine allotments triggered anger and confusion Friday, Jan. 15, 2021, in some states where officials worried that expected shipments would not be forthcoming. (Photo by Smiley N. Pool/The Dallas Morning News via AP Photo)
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