title: Thrombotic complications after valve replacement with porcine heterografts.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000517:prevention & control; D013923:Thromboembolism / Q000188:drug therapy*; D014183:Transplantation, Heterologous