Name Info Provider Link
subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0038-0814(21)00021-9
COVID-19 (Coronavirus Disease 2019) free resource MedlinePlus Health Information https://medlineplus.gov/covid19coronavirusdisease2019.html
free resource Masson (France) https://doi.org/10.1016/S0038-0814(21)00021-9
free resource scite Smart Citations https://scite.ai/reports/33750556