Heart Failure Clinical Trial Operations During the COVID-19 Pandemic: Results From a Multicenter Survey. (September 2020) - Samsky, Marc D.; DeVore, Adam D.; McIlvennan, Colleen K.; Granger, Christopher B.; Granger, Bradi B.; Hernandez, Adrian F.; Felker, G. Michael; Fonarow, Gregg C.; Albert, Nancy M.; Piña, Ileana L.; Lanfear, David; Allen, Larry A.