Influenza virus B Ag:PrThr:Pt:Trac:Ord:IF
influenza virus b ag:prthr:pt:trac:ord:if
Influenza virus B Antigen:Presence or Threshold:To identify measures at a point in time:Trac:Ordinal:Immune Fluorescence
influenza virus b antigen:presence or threshold:to identify measures at a point in time:trac:ordinal:immune fluorescence