Imran Khan, Muhammad Saleem, Javed Khurshed Shaikh, Muhammad Hashim. “Evaluating the Role of Heme in Reducing Discomfort During Radial Artery Verapamil Administration”. Pakistan Journal of Medical & Health Sciences, vol. 17, no. 12, Dec. 2023, p. 428, doi:10.53350/pjmhs020231712428.