title: Continuous measurement of venous diameter by a combined photoelectric-photographic and plethysmographic technique.
mesh_terms: D000818:Animals; D001810:Blood Volume; D004423:Ear / Q000098:blood supply; D008722:Methods; D009638:Norepinephrine / Q000494:pharmacology; D010477:Perfusion; D010781:Photography; D010991:Plethysmography; D011817:Rabbits; D014680:Veins / Q000033:anatomy & histology / Q000502:physiology*; D014690:Venous Pressure / Q000187:drug effects
chemical_list: D009638:Norepinephrine