Sani, A., Ahmed Rufai Usman and Sani, M. (2022) “Assessment of Nickel and Arsenic Poisoning and Estimation of Cancer Risk from Kaolin Mining Sites in Dutsin-Ma and Kankara, Katsina State ”, UMYU Scientifica, 1(2), pp. 115–122. doi: 10.56919/usci.1222.015.