“A Comparative Study of Computed Tomographic Angiography and Digital Subtraction Angiography in Evaluation of Aneurysmal Subarachnoid Haemorrhage”. Journal of Dhaka Medical College, vol. 22, no. 2, Jan. 2015, pp. 195-00, https://doi.org/10.3329/jdmc.v22i2.21542.