Kirtania, K, S Ahmed, N Sultana, MZ Hossain, and MM Rahman. 2011. “Study on Serum Vitamin B12 And Folic Acid in Patients of Ischaemic Stroke”. Journal of Dhaka Medical College 19 (2):115-17. https://doi.org/10.3329/jdmc.v19i2.7080.