The helping older people engage (HOPE) study: Protocol & COVID modifications for a randomized trial oleh Kimberly A. Van Orden, Yeates Conwell, Benjamin P. Chapman, April Buttaccio, Alexandra VanBergen, Ellen Beckwith, Angela Santee, Jody Rowe, Deborah Palumbos, Geoffrey Williams, Susan Messing, Silvia Sörensen, Xin Tu