Dabhoiwala, D. S., D. R. Kathrotia, D. D. Patel, D. Dave, D. A. Joshi, and D. E. Oommen. “ Serum Progesterone Levels”. National Journal of Integrated Research in Medicine, vol. 3, no. 1, Mar. 2012, pp. 39-42, https://nicpd.ac.in/ojs-/index.php/njirm/article/view/1963.