Health-related quality of life in patients with COVID-19; international development of a patient-reported outcome measure oleh Cecilie Delphin Amdal, Katherine Taylor, Dagmara Kuliś, Ragnhild Sørum Falk, Andrew Bottomley, Juan Ignacio Arraras, James Harold Barte, Anne Sophie Darlington, Kristin Hofsø, Bernard Holzner, Nina Marie Høyning Jørgensen, Melissa Paulita Mariano, Madeline Pe, Claire Piccinin, Nicola Riccetti, Melanie Schranz, Sally Wheelwright, Kristin Bjordal