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Flow chart for the process of selecting and evaluating relevant articles. RSV indicates respiratory syncytial virus. Step 1. Reviews (n=21). Excluded reviews (n=14). Different objectives ( n=6) 32–37 Focus on viral infections ( n=2) 10,38 Language (n=2) 39,40
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Flow chart for the process of selecting and evaluating relevant articles. RSV indicates respiratory syncytial virus. Step 1 Reviews (n=21) Excluded reviews (n=14) Different objectives (n=6)32–37 Focus on viral infections (n=2)10,38 Language (n=2)39,40 Absence of references (n=1)41 Overlapping information (n=1)42 No follow-up (n=1)43 Article not retrievable (n=1)44 Relevant reviews (n=7)7,8,27–31 Step 2 Articles reviewed (n=38) Additional articles retrieved(n=54) Excluded (n=47) Relevant articles (n=18)17–23,45–55 Excluded (n=20) Relevant articles (n=1)76 Excluded (n=6) RSV not virologically confirmed (n=7)56–62 Different objectives (n=6)63–68 No new information (n=3)69–71 No subgroup analysis for RSV+ (n=2)72,73 Article date outof range (n=2)74,75 No adequate control group (n=3)77–79 Different objectives (n=2)80,81 RSV not virologically confirmed (n=1)82