TMPRSS2:ERG gene fusion associated with lethal prostate cancer in a watchful waiting cohort: Demichelis F, Fall K, Perner S, Andrén O, Schmidt F, Setlur SR, Hoshida Y, Mosquera JM, Pawitan Y, Lee C, Adami HO, Mucci LA, Kantoff PW, Andersson SO, Chinnaiyan AM, Johansson JE, Rubin MA, Department of Pathology, Brigham and Women’s Hospital, Boston, MA; Harvard Medical School, Boston, MA; and Bioinformatics Group, SRA, ITC-irst, Trento, Italy