title: [Current assessment of gastric acidity].
authors.forename: Iu Ia
authors.initials: IuIa
authors.lastname: Leia
mesh_terms: D005744:Gastric Acid / Q000378:metabolism; D005745:Gastric Acidity Determination / Q000295:instrumentation; D005773:Gastroscopy; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008991:Monitoring, Physiologic