Echovirus 2 Ab:Titr:Pt:Ser:SemiQn
echovirus 2 ab:titr:pt:ser:semiqn
Echovirus 2 Antibody:Dilution Factor (Titer):To identify measures at a point in time:Serum:Semiquantitative
echovirus 2 antibody:dilution factor (titer):to identify measures at a point in time:serum:semiquantitative