1. Neeltje van Doremalen et al. Aerosol and Surface Stability of SARS-CoV-2 as Compared with SARS-CoV-1. The New England Journal of Medicine. 2020 March.
2. Thomas Radulesco et al. Copper enhanced nasal saline irrigations: a safe potential treatment and protective factor for COVID-19 infection? Rhinology Online.2020 June 6,
3. Syamal Raha et al. Is copper beneficial for COVID-19 patients? Medical Hypotheses. 2020. May