title: 24 hour intragastric acidity and single night-time dose of three H-2-blockers.
mesh_terms: D002927:Cimetidine / Q000008:administration & dosage; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D015738:Famotidine; D005745:Gastric Acidity Determination; D006635:Histamine H2 Antagonists / Q000008:administration & dosage*; D006801:Humans; D011897:Random Allocation; D011899:Ranitidine / Q000008:administration & dosage; D013844:Thiazoles / Q000008:administration & dosage
chemical_list: D006635:Histamine H2 Antagonists; D013844:Thiazoles; D015738:Famotidine; D002927:Cimetidine; D011899:Ranitidine