Associations between rurality and regional differences in sociodemographic factors and the 1918-20 influenza and 2020-21 COVID-19 pandemics in Missouri counties: An ecological study. - Sattenspiel L; Orbann C; Bogan A; Ramirez H; Pirrone S; Dahal S; McElroy JA; Wikle CK (PloS one, 2023)