pH.total acid:LsCnc:Pt:Gast fld:SemiQn
ph.total acid:lscnc:pt:gast fld:semiqn
pH.total acid:Log Substance Concentration:To identify measures at a point in time:Gastric fluid/contents:Semiquantitative
ph.total acid:log substance concentration:to identify measures at a point in time:gastric fluid/contents:semiquantitative