Sheen Reynold, Jiya Marium George, Athul Gopan, Anila KN, Sreehari NR, and Sajesh K Menon, “A case report on the management of severe vasospasm in subarachnoid hemorrhagic patients using intra-arterial nimodipine, intrathecal sodium nitroprusside and intra-arterial papaverine”, Int. J. Res. Pharm. Sci., vol. 11, no. 4, pp. 7334–7337, Dec. 2020.