Lytle KL, Collins SP, Feldstein LR, Baughman AH, Brown SM, Casey JD, Erickson HL, Exline MC, Files DC, Gibbs KW, Ginde AA, Gong MN, Grijalva CG, Khan A, Lindsell CJ, Peltan ID, Prekker ME, Rice TW, Shapiro NI, Steingrub JS, Stubblefield WB, Tenforde MW, Womack KN, Patel MM, Self WH. Influenza vaccine acceptance and hesitancy among adults hospitalized with severe acute respiratory illnesses, United States 2019-2020. Vaccine. 2021 08 31; 39(37):5271-5276.