Data collection
The reviewers screened, titles, abstracts, and reviewed full texts of
potentially eligible records using Covidence systematic review software
(Veritas Health Innovation, Melbourne, Australia). The data were
extracted using standardized forms in duplicate by two reviewers
independently. Any conflicts were resolved by a third reviewer and
consensus of the task force core team (CR, IS, GdT, AFS). Where relevant
information was missing from a study that was potentially eligible for
the SR, the corresponding author of the respective study was contacted
and inclusion of this study was contingent on completion of this
information by email from the corresponding author.