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Table 3 Risk of bias summary

From: The effect of corticosteroids on mortality of patients with influenza pneumonia: a systematic review and meta-analysis

  A. Selection B. Comparability of cohorts C. Outcome
Represent-activeness of exposed cohort Selection of non-exposure Ascertainment of exposure Outcome not present at start Assessment of exposure F/U long enough? Adequacy of F/U
Brun-Buisson [13]    
Cao [15]    
Diaz [12]  
Jung [16]  
Perez-Padilla [17]    
Lee [18]  
Li [19]  
Moreno [20]    
Rois [21]
Viasus [22]
  1. Stars indicate the scores assigned to each study