title: Optical density measurements in canine tibias in situ.
mesh_terms: D000109:Acetylcholine / Q000097:blood / Q000494:pharmacology; D000818:Animals; D004285:Dogs; D007269:Injections, Intra-Arterial; D013058:Mass Spectrometry; D009638:Norepinephrine / Q000097:blood / Q000494:pharmacology; D010477:Perfusion; D010991:Plethysmography; D013057:Spectrum Analysis; D013977:Tibia / Q000098:blood supply / Q000187:drug effects
chemical_list: D000109:Acetylcholine; D009638:Norepinephrine