Qian J, Stepien S, Cheng A, Shaw JE, Macartney K, Rowe SL, Thompson K, Dore GJ, Kaldor J, Newall AT, Wood J, Sparke C, O'Donnell B, Lambert SB, Matthews GV, Abbenbroek B, Liu B; Post-acute COVID-19 Outcomes Study Investigators Full text COVID-19 Special risk groups Surveillance 2026 Description International Journal of Epidemiology 2026;55:dyag009. doi: 10.1093/ije/dyag009 (Epub) 4 views