GWAS and meta-analysis identifies 49 genetic variants underlying critical COVID-19 by Pairo-Castineira, E, Rawlik, K, Bretherick, AD, Qi, T, Wu, Y, Nassiri, I, McConkey, GA, Zechner, M, Klaric, L, Griffiths, F, Oosthuyzen, W, Kousathanas, A, Richmond, A, Millar, J, Russell, CD, Malinauskas, T, Thwaites, R, Morrice, K, Keating, S, Maslove, D, Nichol, A, Semple, MG, Knight, J, Shankar-Hari, M, Summers, C, Hinds, C, Horby, P, Ling, L, McAuley, D, Montgomery, H, Openshaw, PJM, Begg, C, Walsh, T, Tenesa, A, Flores, C, Riancho, JA, Rojas-Martinez, A, Lapunzina, P, Yang, J, Ponting, CP, Wilson, JF, Vitart, V, Abedalthagafi, M, Luchessi, AD, Parra, EJ, Cruz, R, Carracedo, A, Fawkes, A, Murphy, L, Rowan, K, Pereira, AC, Law, A, Fairfax, B, Clohisey Hendry, S, Baillie, JK, Klenerman, P, Mentzer, AJ, Merson, L, Sigfrid, L, Stuart, D, Carson, G, Lee, J, Plotkin, D