Site-specific steric control of SARS-CoV-2 spike glycosylation Posted March 09, 2021. https://www.biorxiv.org/content/10.1101/2021.03.08.433764v1.full These include the Amsterdam Medical Centre (Amsterdam), Harvard Medical School (Harvard), Switzerland, The Wellcome centre for Human genetics (Oxford) and Biological Sciences/University of Texas at Austin (Southampton/Texas) Check out the Materials and Methods https://www.biorxiv.org/content/10.1101/2021.03.08.433764v1.full