Genome-wide association study in multiple human prion diseases suggests genetic risk factors additional to PRNP. - Mead S; Uphill J; Beck J; Poulter M; Campbell T; Lowe J; Adamson G; Hummerich H; Klopp N; Rückert IM; Wichmann HE; Azazi D; et al. (Human molecular genetics, 2012)