Nwobi, N. L., Adedapo, S. K., Oyinlade, O. A., Olukolade, O., Lagunju, I. A., Atulomah, N. O., Nwazuoke, I. A. and Anetor, J. I. (2019) “Urinary calcium: a promising predictive biomarker for early recognition of environmental lead exposure in children”, International Journal of Research in Medical Sciences, 7(6), pp. 2265–2272. doi: 10.18203/2320-6012.ijrms20192510.