Eriksson AL, Mellstr?m D, Lorentzon M, Orwoll ES, Redlund-Johnell I, Grundberg E, Holmberg A, Ljunggren O, Karlsson MK, Ohlsson C. The COMT val158met polymorphism is associated with prevalent fractures in Swedish men. Bone. 2008 Jan; 42(1):107-12.