Tahir, M., Ali, M., Siddiqui, D.K., Durrani, N., Iqbal, J. and Mustafa, K. 2023. Tunneled dialysis catheter utilization and patency: a retrospective-prospective study from a tertiary care hospital in Karachi Pakistan. Journal of the Pakistan Medical Association. 74, 1 (Dec. 2023), 48–52. DOI:https://doi.org/10.47391/JPMA.8006.