Parainfluenza virus 1 Ag:PrThr:Pt:Nph:Ord:IF
parainfluenza virus 1 ag:prthr:pt:nph:ord:if
Parainfluenza virus 1 Ag [Presence] in Nasopharynx by Immunofluorescence
parainfluenza virus 1 ag [presence] in nasopharynx by immunofluorescence