Considering that January 2020 Elsevier has established a COVID-19 resource centre with no cost details in English and Mandarin to the novel coronavirus COVID-19. The COVID-19 source centre is hosted on Elsevier Connect, the organization's community information and knowledge Site. Elsevier hereby grants permission to produce all its COVID-19-relevant study https://www.youtube.com/watch?v=bEpgQCmGRSY