"Anticoagulants and GI Bleeding". Mark Crowther, M.D. Canadian Journal of Gastroenterology 19:935, 2005.  Link to the article.
Gastrointestinal Complications of Dual Antiplatelet Therapy. Neelima G. Vallurupalli, MD; Samuel Z. Goldhaber, MD. Circulation. 2006;113:e655-e658. Link to the article.

Brilakis et al. Perioperative Management of Coronary Stents. JACC 49::2145–50, 2007. Link to the Abstract.

.