Panton-Valentine leucocidin is the key determinant of Staphylococcus aureus pyomyositis in a bacterial GWAS by Young, BC, Earle, SG, Soeng, S, Sar, P, Kumar, V, Hor, S, Sar, V, Bousfield, R, Sanderson, ND, Barker, L, Stoesser, N, Emary, KRW, Parry, CM, Nickerson, EK, Turner, P, Bowden, R, Crook, DW, Wyllie, DJ, Day, NPJ, Wilson, DJ, Moore, CE