Igwo-Ezikpe, M.N., Osuntoki, A.A., Awodele, O., Olasore, H.S.A., Omoniyi Y.A, O.A. and Fayeun O.E, E.C.A.S. 2019. URINARY 1-HYDROXYPYRENE CONCENTRATION AND TOXICITY BIOMARKERS IN ACTIVE AND PASSIVE MALE SMOKERS FROM LAGOS METROPOLIS, NIGERIA. UNILAG Journal of Medicine, Science and Technology. 4, 1 (Jan. 2019), 111-128.