Chronic kidney disease has a graded association with death and cardiovascular outcomes in stable coronary artery disease : An analysis of 21,911 patients from the CLARIFY registry - Vidal-Petiot, Emmanuelle (Institut nationale de la santé et de la recherché médicale) ; Greenlaw, Nicola (University of Glasgow) ; Kalra, Paul R. (Portsmouth Hospitals NHS Trust) ; Garcia-Moll, Xavier (Institut d'Investigació Biomèdica Sant Pau) ; Tardif, Jean-Claude (Université de Montreal) ; Ford, Ian (University of Glasgow) ; Zamorano, José Luis (Hospital Universitario Ramón y Cajal (Madrid)) ; Ferrari, Roberto (Maria Cecilia Hospital) ; Tendera, Michal (Medical University of Silesia) ; Fox, Kim M. (Royal Brompton Hospital (Londres)) ; Steg, Philippe Gabriel (Hôpital Bichat) ; Universitat Autònoma de Barcelona