The GDF5 rs143383 polymorphism is associated with osteoarthritis of the knee with genome-wide statistical significance. Issue 5 (24th September 2010) - Valdes, Ana M; Evangelou, Evangelos; Kerkhof, Hanneke J M; Tamm, Agu; Doherty, Sally A; Kisand, Kalle; Tamm, Ann; Kerna, Irina; Uitterlinden, Andre; Hofman, Albert; Rivadeneira, Fernando; Cooper, Cyrus; et al.