Abbas, Ahsan K. “Enzyme Linked Immunosorbent Assay (ELSA) Investigation for Human Kisspeptin and Progesterone Levels in Female Having Regular Menstrual Cycle”. Journal of the Faculty of Medicine Baghdad, vol. 53, no. 2, July 2011, pp. 211-5, https://doi.org/10.32007/jfacmedbagdad.532877.