Zoha Nasir, Muhammad Usaid Khan, Hina Batool, Naveed Nayyer, Jalil Iqbal, Muhammad Zubair (2022) “Frequency of Vitamin D Deficiency and its Association with CP Class in Cases of Liver Cirrhosis”, Pakistan Journal of Medical & Health Sciences, 16(09), p. 993. doi: 10.53350/pjmhs22169993.