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).