1. Gastrointestinal bleeding in aortic stenosis;Heyde;N Engl J Med,1958
2. Aortic stenosis and bleeding gastrointestinal angiodysplasia: is acquired von Willebrand's disease the link?;Warkentin;Lancet,1992
3. Gastrointestinal bleeding, angiodysplasia, cardiovascular disease, and acquired von Willebrand syndrome;Warkentin;Transfus Med Rev,2003
4. Acquired von Willebrand syndrome in aortic stenosis;Vincentelli;N Engl J Med,2003
5. Aortic stenosis, von Willebrand factor, and bleeding;Sadler;N Engl J Med,2003