Umar, M., L. C. H. khalid . Pervaiz Butt, I. . Saleem, A. . Sikandar, B. Farooqi, and S. Shahzad. “Comparison of Efficacy of Foam Sclerotherapy With and Without Ultrasound Guided for the Treatment of Varicose Veins”. Pakistan Journal of Medical & Health Sciences, vol. 18, no. 3, Sept. 2024, p. 40, doi:10.53350/pjmhs0202418312.