HIV 1 p24 Ag:PrThr:Pt:Ser:Ord
hiv 1 p24 ag:prthr:pt:ser:ord
Human immunodeficiency virus 1 p24 Antigen:Presence or Threshold:To identify measures at a point in time:Serum:Ordinal
human immunodeficiency virus 1 p24 antigen:presence or threshold:to identify measures at a point in time:serum:ordinal