Fig. 3
From: Vitamin D and airway infections: a European perspective

Meta-analysis of the efficacy of vitamin D therapy against acute airway infections. Results are presented as odds ratios. Error bars indicate 95 % confidence intervals
From: Vitamin D and airway infections: a European perspective
Meta-analysis of the efficacy of vitamin D therapy against acute airway infections. Results are presented as odds ratios. Error bars indicate 95 % confidence intervals