Authors: Katherine S Elliott; Kay Chapman; Aaron Day-Williams; Kalliope Panoutsopoulou; Lorraine Southam; Cecilia M Lindgren; Nigel Arden; Nadim Aslam; Fraser Birrell; Ian Carluke; Andrew Carr; Panos Deloukas; Michael Doherty; John Loughlin; Andrew McCaskie; William E R Ollier; Ashok Rai; Stuart Ralston; Mike R Reed; Timothy D Spector; Ana M Valdes; Gillian A Wallis; Mark Wilkinson; Eleftheria Zeggini Journal: Ann Rheum Dis Date: 2012-09-06 Impact factor: 19.103