A New Crystal Form of the SARS-CoV-2 Receptor Binding Domain: CR3022 Complex—An Ideal Target for In-Crystal Fragment Screening of the ACE2 Binding Site Surface - Nichols, Charlie; Ng, Joseph; Keshu, Annika; Fraternali, Franca; De Nicola, Gian F. (Frontiers in Pharmacology, 2020)