Helicobacter pylori Ab.IgA:PrThr:Pt:Ser:Ord
helicobacter pylori ab.iga:prthr:pt:ser:ord
Helicobacter pylori Antibody.immunoglobulin A:Presence or Threshold:To identify measures at a point in time:Serum:Ordinal
helicobacter pylori antibody.immunoglobulin a:presence or threshold:to identify measures at a point in time:serum:ordinal