Fig 1.
Overview of the research process.
Fig 2.
Disposition of screened articles.
Fig 3.
The MRA system.
Table 1.
Factors identified in Delphi Round 1 that were not in the literature.
Table 2.
Factors identified in Delphi Round 1 that were not in the literature top 26%.
Table 3.
Comparison of factors mentioned in the Delphi top 27% and the literature top 26%.
Fig 4.
Importance versus reliability of factors.
Table 4.
Refuted and uncertain factors.
Table 5.
Framework for increasing data accuracy in MRA.
Table 6.
Frequency of reporting MRA methods.