title: [Direct and indirect cineradiographic measurements of the opening angle in Björk-Shiley prosthesis].
mesh_terms: D001021:Aortic Valve / Q000000981:diagnostic imaging*; D002933:Cineradiography / Q000379:methods; D005260:Female; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D011183:Postoperative Complications / Q000000981:diagnostic imaging*
vernacular_title: Medición cinerradiográfica directa e indirecta del ángulo de apertura en las prótesis de Björk-Shiley.