title: Valved external conduits to pulmonary arteries.
mesh_terms: D000818:Animals; D001807:Blood Vessel Prosthesis / Q000295:instrumentation*; D004285:Dogs; D006330:Heart Defects, Congenital / Q000601:surgery*; D006350:Heart Valve Prosthesis / Q000295:instrumentation*; D006801:Humans; D011183:Postoperative Complications / Q000517:prevention & control; D011651:Pulmonary Artery / Q000601:surgery*; D013923:Thromboembolism / Q000517:prevention & control