Expanding telemonitoring in a virtual world: a case study of the expansion of a heart failure telemonitoring program during the COVID-19 pandemic - Wali, Sahr; Guessi, Milena; Shah, Amika; Ware, Patrick; McDonald, Michael; O'Sullivan, Mary; Posada, Juan Duero; Ross, Heather; Seto, Emily (Journal of Medical Internet Research - JMIR, 2021)