Influence of preoperative frailty on quality of life after cardiac surgery: Protocol for a systematic review and meta-analysis.
Kathryn BezzinaChristophe Alain FehlmannMing Hao GuoSarah M VisintiniFraser D RubensGeorge A WellsRosetta MazzolaCaroline McGuintyAllen HuangLara KhouryKevin Emery BoczarPublished in: PloS one (2022)
OSF registries (https://osf.io/vm2p8).