Since January 2020 Elsevier has made a COVID-19 useful resource centre with cost-free info in English and Mandarin over the novel coronavirus COVID-19. The COVID-19 source centre is hosted on Elsevier Connect, the business's community information and knowledge website. Elsevier hereby grants permission to produce all its COVID-19-associated research that https://www.youtube.com/watch?v=bEpgQCmGRSY