Sbihi H, Davies HW, Demers PA. Hypertension in noiseexposed sawmill workers: a cohort study. Occup Environ Med. 2008;65(9):643–646.Sbihi H, Teschke K, MacNab YC, et al. An investigation of the adjustment of retrospective noise exposure for use of hearing protection devices. Ann Occup Hyg. 2010;54(3): 329–339.