[1] Ist Sci San Raffaele, Unidad Cardiol Invas, I-20132 Milan, Italy
[2] Castle Hill Hosp, Unidad Cardiol Invas, Cottingham, East Yorkshire, England
[3] Hosp Badalona Germans Trias & Pujol, Unidad Cardiol Invas, Barcelona, Spain
[4] Imperial Coll Healthcare NHS Trust, Dept Cardiovasc Med, London, England
[5] Sir Charles Gairdner Hosp, Unidad Cardiol Invas, Nedlands, WA USA
[6] William Beaumont Hosp, Royal Oak, MI 48072 USA
[7] Hosp Italiano Buenos Aires, Unidad Cardiol Invas, Buenos Aires, DF, Argentina
[8] Univ Toronto, Ctr Ciencias Salud Sunnybrook, Ctr Cardiol Schulich, Toronto, ON, Canada
[9] Inst Humanitas, Unidad Cardiol Invas, Milan, Italy
[10] Geisinger Med Ctr, Danville, PA 17822 USA
[11] Ctr Henry Hood Invest Salud, Danville, PA USA
[12] Hosp St Vincent, Unidad Cardiol Invas, Ctr Med Worcester, Boston, MA USA
[13] Columbia Univ, Unidad Cardiol Invas, Ctr Med, New York, NY USA