Khan, Karima Karam, and Robyna Irshad Khan. “ANALGESIC EFFECT OF BILATERAL SUBCOSTAL TAP BLOCK AFTER LAPAROSCOPIC CHOLECYSTECTOMY”. Journal of Ayub Medical College Abbottabad, vol. 30, no. 1, Feb. 2018, pp. 12-15, https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/2795.