https://api.elsevier.com/content/article/pii/S0278691520306992doi:10.1016/j.fct.2020.1118091-s2.0-S027869152030699210.1016/j.fct.2020.111809S0278-6915(20)30699-2Toxic metal exposure as a possible risk factor for COVID-19 and other respiratory infectious diseases Food and Chemical ToxicologyJournal027869152020-12-31December 20200falsefalse