Kharbat, A., S. Rossettie, and M. Zumwalt. “Links Between exercise/nutrition and Antioxidants - Protective Effects on immune/Respiratory Systems As Defense Against Viral Infections”. The Southwest Respiratory and Critical Care Chronicles, Vol. 8, no. 36, Sept. 2020, pp. 23-31, doi:10.12746/swrccc.v8i36.751.