Ostial Lesion   
Acute Myocardial Infarction with Hyperoxemic Therapy (Amihot): A Prospective, Randomized Trial of Intracoronary Hyperoxemic Reperfusion after Percutaneous Coronary Intervention
J Am Coll Cardiol (2007) 50;397-405
W. W. O'Neill, et al.
Coaxial Double Catheter Technique Followed by Buddy Wire Placement for Ostial Lesion of Right Coronary Artery with Anterior Take-Off
Catheter Cardiovasc Interv (2007) 70;979-82
S. Furuichi, et al.