Demographic Determinants and Geographical Variability of COVID-19 Vaccine Hesitancy in Underserved Communities: Cross-sectional Study - Jennifer L Matas; Latrice G Landry; LaTasha Lee; Shantoy Hansel; Makella S Coudray; Lina V Mata-McMurry; Nishanth Chalasani; Liou Xu; Taylor Stair; Christina Edwards; Gary Puckrein; William Meyer; et al. (JMIR Public Health and Surveillance, 2023)