A common prostate cancer risk variant 5' of microseminoprotein-beta (MSMB) is a strong predictor of circulating beta-microseminoprotein (MSP) levels in multiple populations. - Waters, K; Stram, DO; Le Marchand, L; Klein, R; Valtonen-André, C; Peltola, M; Kolonel, L; Henderson, B; Lilja, H; Haiman, C (Cancer epidemiology, biomarkers and prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology, 2010)