title: A study of the in vivo activity of liquid antacids.
mesh_terms: D000328:Adult; D000863:Antacids / Q000494:pharmacology*; D004341:Drug Evaluation; D005750:Gastric Juice / Q000032:analysis*; D005782:Gels; D006801:Humans; D006863:Hydrogen-Ion Concentration; D012996:Solutions
chemical_list: D000863:Antacids; D005782:Gels; D012996:Solutions