Improvement in Mortality Risk Prediction After Percutaneous Coronary Intervention Through the Addition of a “Compassionate Use” Variable to the National Cardiovascular Data Registry CathPCI Dataset: A Study from the Massachusetts Angioplasty Registry.

Resnic FS, Normand S-LT, Piemonte TC, et al.
Sharon-Lise Normand
Journal of the American College of Cardiology
http://www.ncbi.nlm.nih.gov/pubmed/?term=Improvement%20in%20Mortality%20Risk%20Prediction%20After%20Percutaneous%20Coronary%20Intervention%20Through%20the%20Addition%20of%20a%20%E2%80%9CCompassionate%20Use%E2%80%9D%20Variable%20to%20the%20National%20Cardiovascular%20Data%20Registry%20CathPCI%20Dataset%3A%20A%20Study%20from%20the%20Massachusetts%20Angioplasty%20Registry.