Risk factors associated with acute respiratory illnesses in athletes: a systematic review by a subgroup of the IOC consensus on `acute respiratory illness in the athlete` - Derman, W.; Badenhorst, M.; Eken, M.; Gomez-Ezeiza, J.; Fitzpatrick, J.; Gleeson, M.; Kunorozva, L.; Mjosund, K.; Mountjoy, M.; Sewry, N.; Schwellnus, M. (British Journal of Sports Medicine, 2022)