title: A ballistocardiographic study on the change of peripheral vascular resistance.
mesh_terms: D000328:Adult; D000680:Amyl Nitrite; D001450:Ballistocardiography; D004562:Electrocardiography; D005385:Fingers / Q000098:blood supply; D006801:Humans; D008729:Methoxamine; D008875:Middle Aged; D010991:Plethysmography; D012039:Regional Blood Flow; D014655:Vascular Resistance / Q000187:drug effects
chemical_list: D000680:Amyl Nitrite; D008729:Methoxamine