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Vitamin D and Respiratory Tract Infections: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
Bergman P,
Lindh ÅU,
Björkhem-Bergman L,
Lindh JD
(2013)
Vitamin D and Respiratory Tract Infections: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
PLOS ONE 8(6): e65835.
https://doi.org/10.1371/journal.pone.0065835