S K. Gahlot, Reema Chaudhary, and Chandra Shekhar Singh, “Effect of dexmedetomidine & clonidine on intracranial pressure with help of optic nerve sheath diameter during laparoscopic surgery”, Int. J. Heal. Clin. Res., vol. 4, no. 21, pp. 19–26, Dec. 2021.