Singh, Kuldeep, Sharad Pandey, Pankaj Kumar, L.N. Gupta, Amit Mehto, and Ravi Prakesh Jha. 2022. “Study of Association of Serum Vitamin D and Serum Calcium With Spontaneous Aneurysmal Subarachnoid Haemorrhage in a Tertiary Care Centre”. Romanian Neurosurgery 36 (2):230-36. https://doi.org/10.33962/roneuro-2022-041.