"21307222" . "21307222" . "Medline; PMC" . "cc-by" . . . "Gnanandarajah, Josephine" . . "J Gen Virol" . "Griggs, Theodor" . "10.1099/vir.0.030213-0" . "2011-05-01"^^ . . . "Johnson, Craig" . . "392b69d5b7ff3f01f2e1652393a6b26b03c01e06" . "PMC3139420" . "Novel structural protein in porcine reproductive and respiratory syndrome virus encoded by an alternative ORF5 present in all arteriviruses" . "Murtaugh, Michael" . . .