title: Connective tissue composition of the canine circle of Willis.
mesh_terms: D000818:Animals; D002941:Circle of Willis / Q000032:analysis*; D003094:Collagen / Q000032:analysis; D003238:Connective Tissue / Q000032:analysis*; D004285:Dogs; D004549:Elastin / Q000032:analysis
chemical_list: D003094:Collagen; D004549:Elastin