title: Placebo gastric analysis.
mesh_terms: D000284:Administration, Oral; D000328:Adult; D001466:Barium Sulfate / Q000008:administration & dosage; D005215:Fasting; D005745:Gastric Acidity Determination; D005750:Gastric Juice / Q000187:drug effects / Q000378:metabolism; D005753:Gastric Mucosa / Q000378:metabolism*; D005947:Glucose / Q000008:administration & dosage; D006632:Histamine / Q000008:administration & dosage / Q000494:pharmacology; D006801:Humans; D007273:Injections, Intramuscular; D007785:Lactose / Q000008:administration & dosage; D008297:Male; D008875:Middle Aged; D010434:Pepsin A / Q000378:metabolism; D010919:Placebos; D013270:Stomach / Q000187:drug effects; D014326:Tropanes / Q000494:pharmacology
chemical_list: D010919:Placebos; D014326:Tropanes; D001466:Barium Sulfate; D006632:Histamine; D010434:Pepsin A; D005947:Glucose; D007785:Lactose