Digital, Personalized Clinical Trials Among Older Adults, Lessons Learned From the COVID-19 Pandemic, and Directions for the Future: Aggregated Feasibility Data From Three Trials Among Older Adults. - Arader, Lindsay; Miller, Danielle; Perrin, Alexandra; Vicari, Frank; Friel, Ciaran P; Vrany, Elizabeth A; Goodwin, Ashley M; Butler, Mark (Journal of Medical Internet Research, 2025)