Background: The use of electronic cigarettes (e-cigarette) offers potential to facilitate cigarette smoking cessation, yet potentially increases risk of cigarette smoking initiation. This relationship has been primarily modeled in mathematical ways that often do not represent real-world complexities, which could inform decisions regarding local…

COVID-19 has profoundly affected educational institutions across the Commonwealth of Pennsylvania, as it has in the rest of the country and around the world. Since March 2020, school buildings statewide have been closed. Although many schools have worked hard to provide instruction remotely, it is likely that schoolchildren all over the state are…