Helicobacter pylori:PrThr:Pt:Stool:Ord:Organism specific culture
helicobacter pylori:prthr:pt:stool:ord:organism specific culture
Helicobacter pylori:Presence or Threshold:To identify measures at a point in time:Stool:Ordinal:Organism specific culture
helicobacter pylori:presence or threshold:to identify measures at a point in time:stool:ordinal:organism specific culture