References – Boost Your Immunity with These 5 Nutrients
Chambial, S., Dwivedi, S., Shukla, K.K. et al. Vitamin C in Disease Prevention and Cure: An Overview. Ind J Clin Biochem28, 314–328 (2013). https://doi.org/10.1007/s12291-013-0375-3
Maares M, Haase H. Zinc and immunity: An essential interrelation. Archives of Biochemistry and Biophysics. 2016;611:58-65.