title: Photoelastic stress analysis of silastic poppets in prosthetic heart valves.
mesh_terms: D004548:Elasticity; D006350:Heart Valve Prosthesis; D006801:Humans; D006874:Hydrostatic Pressure; D008027:Light; D008433:Mathematics; D008954:Models, Biological; D011474:Prosthesis Design; D012826:Silicone Elastomers; D013314:Stress, Mechanical
chemical_list: D012826:Silicone Elastomers