[Retracted] Extra Dose of Vitamin C Based on a Daily Supplementation Shortens the Common Cold: A Meta-Analysis of 9 Randomized Controlled Trials

<div>Forest plot of the meta-analysis of sore throat.</div>

BioMed Research International

fig4

Figure 4

Figure 4: [Retracted] Extra Dose of Vitamin C Based on a Daily Supplementation Shortens the Common Cold: A Meta-Analysis of 9 Randomized Controlled Trials 

Figure 4 | [Retracted] Extra Dose of Vitamin C Based on a Daily Supplementation Shortens the Common Cold: A Meta-Analysis of 9 Randomized Controlled Trials 