Karim, P., M. I. Hossain, A. N. Sadat, Z. Nahar, M. K. Hossain, and A. Hasnat. “Serum Levels of Cadmium, Calcium, Lead and Iron in Schizophrenic Patients”. Dhaka University Journal of Pharmaceutical Sciences, vol. 5, no. 1, June 2007, pp. 9-13, doi:10.3329/dujps.v5i1.221.