Muhammad Nayyab Tahir, Husnain Athar, Maheen Shahid, Raneesha Umer, Abrar Ul H Aq (2023) “Frequency of Vitamin B12 Deficiency in patients of Pancytopenia”,
Pakistan Journal of Medical & Health Sciences
, 16(12), p. 40. doi: 10.53350/pjmhs2022161240.