What is the recovery rate and risk of long-term consequences following a diagnosis of COVID-19? A harmonised, global longitudinal observational study protocol od Sigfrid, L, Cevik, M, Jesudason, E, Lim, WS, Rello, J, Amuasi, J, Bozza, F, Palmieri, C, Munblit, D, Holter, JC, Kildal, AB, Reyes, LF, Russell, CD, Ho, A, Turtle, L, Drake, TM, Beltrame, A, Hann, K, Bangura, IR, Fowler, R, Lakoh, S, Berry, C, Lowe, DJ, McPeake, J, Hashmi, M, Dyrhol-Riise, AM, Donohue, C, Plotkin, D, Hardwick, H, Elkheir, N, Lone, NI, Docherty, A, Harrison, E, Baille, JK, Carson, G, Semple, MG, Scott, JT