Additional files to the SR17 final report

Additional file 1.  Literature searches (search update)

Additional file 2.  Articles excluded as irrelevant to the review

Additional file 3.  Studies excluded due to low or unclear validity

Additional file 4.  Extracted data records

Additional file 5.  Narrative table

Additional file 6.  Unweighted quantitative analysis

Additional file 7.  Weighted quantitative analysis