Guadamuz JS, et al. - Despite the important role of pharmacies in the drug supply chain, as well as evidence that pharmacy closures play a role in patient nonadherence of prescription medications, there is a paucity of data on the prevalence and risk factors for pharmacy closures in the United States. In this study, researchers examined trends in US pharmacy closures between 2009 and 2015, focusing on pharmacy, community, and market factors that might be linked to such closures. They postulated that pharmacies disproportionately serving publicly insured populations may be at increased risk for closure due to lower pharmacy reimbursement rates from Medicaid and Medicare. They also posited that independent pharmacies may be more likely to close, given that they often do not participate in preferred pharmacy networks.