Impact of the COVID-19 Pandemic on Health Care Utilization in the Vaccine Safety Datalink: Retrospective Cohort Study by Lei Qian, Lina S Sy, Vennis Hong, Sungching C Glenn, Denison S Ryan, Jennifer C Nelson, Simon J Hambidge, Bradley Crane, Ousseny Zerbo, Malini B DeSilva, Jason M Glanz, James G Donahue, Elizabeth Liles, Jonathan Duffy, Stanley Xu

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