[The detection of achlorhydria using azure A-cation exchange].
D000126:Achlorhydria; D001399:Azure Stains; D002412:Cations; D005750:Gastric Juice; D006801:Humans; D013274:Stomach Neoplasms / Q000175:diagnosis*
D001399:Azure Stains; D002412:Cations; C025818:Azure A
GASTRIC JUICE; STOMACH NEOPLASMS/diagnosis