Mohamed Zakariya Elattar, et al. “Topical Lidocaine and or Intravenous Midazolam before Radial Coronary Angiography to Prevent Radial Artery Spasm”. Journal of the Pakistan Medical Association, vol. 73, no. 4, May 2023, pp. S103-S108, doi:10.47391/JPMA.EGY-S4-22.