title: Ranitidine and intragastric pH profiles in seriously ill patients.
mesh_terms: D005663:Furans / Q000494:pharmacology*; D005750:Gastric Juice / Q000032:analysis*; D005753:Gastric Mucosa / Q000187:drug effects; D006635:Histamine H2 Antagonists / Q000494:pharmacology*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D011899:Ranitidine
chemical_list: D005663:Furans; D006635:Histamine H2 Antagonists; D011899:Ranitidine