PMID: Laryngorhinootologie. 2018 Aug ;97(8):529-536. Epub 2018 Aug 6. PMID: 30081415 Abstract Title: [Prevention of Infections of the Upper Respiratory Tract]. Abstract: Because of its high prevalence acute respiratory diseases have a significant impact on the population. The focus of this review was the current state of knowledge for the prophylactic efficacy of: zinc, vitamin …
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