ABFF - Belt,P.B.G.M.; Muileman,I.H.; Schreuder,B.E.C.; Bos-de Ruijter,J.; Gielkens,A.L.J.; Smits,M.A. - Identification of five allelic variants of the sheep PrP gene and their association with natural scrapie - Journal of General Virology 1995 Mar; 76(3): 509-17