Saeed, M., and M. Z. Janjua. “Columnar Organization of the Neurons in Theventral Horn of the Cervical and Upper Thoracic Spinal Cord in Albino Rat”. Journal of Postgraduate Medical Institute, vol. 11, no. 2, Sept. 2011, https://jpmi.org.pk/index.php/jpmi/article/view/583.