References
1. Gammoh NZ and L Rink. Zinc in infection and inflammation. Nutrients 2017;9:624.
2. Prasad AS. Zinc in human health: effect of zinc on immune cells. Mol Med 2008;14(5-6):353-357.
3. Samarghandian S, Farkhondeh T and F Samini. Honey and health: A review of recent clinical research. Pharmacognosy Res 2017;9:121-127.
4. Oduwole O, Udoh EE, Oyo-Ita A, et al. Honey for acute cough in children. Cochrane Database Syst Rev 2018;4:CD007094.
5. Health Canada. Natural health products ingredients database. Accessed August 2023 at https://webprod.hc-sc.gc.ca/nhpid-bdipsn/atReq.do?atid=elder.sureau&lang=eng
6. Lang C, Röttger-Lüer P and C Staiger. A valuable option for the treatment of respiratory diseases: review on the clinical evidence of the ivy leaves dry extract EA 575®. Planta Med 2015;81:968-974.