Study protocol for the COPE study: COVID-19 in Older PEople: the influence of frailty and multimorbidity on survival. A multicentre, European observational study oleh Thomas Lee, Sandeep Singh, Phyo Kyaw Myint, Sheila Jones, Ben Carter, Susan Moug, Terry Quinn, Michael Thomas, Emma Bhatti, Angeline Price, Fenella Barlow-Pay, Siobhan Duffy, Lyndsay Pearce, Arturo Vilches-Moraga, Michael Stechman, Philip Braude, Emma Mitchell, Alessia Verduri, Kathryn McCarthy, Jonathan Hewitt, Charlotte Davey, Kiah Lunstone, Alice Cavenagh, Charlotte Silver, Thomas Telford, Rebecca Simmons, Dolcie Paxton, Francis Rickard, Mark Holloway, James Hesford, Tarik Jichi, Norman Galbraith, Jenny Edwards, Carly Bisset, Ross Alexander, Abigail Ingham, Roxanna Short, Aine McGovern, Jemima Collins, Eilidh Bruce, Alice Einarsson, Enrico Clini, Giovanni Guaraldi, Madeline Garcia, Shefali Sangani, Thomas Kneen, George Kyriakopoulos, Denise Tan