RESULTS
The literature search resulted in a total of 6429 publications. After the removal of duplicates, 2483 articles remained, of which 34 met the inclusion criteria and were included in the final network meta-analysis (Figure 1). Included were two RCTs and thirty two observational of which nine were PSM. The assessment of the quality of the individual studies and the evidence is reported in Supplement Material (Tables S2, S3).