Baig, S. A., C. Balachandran, and S. Nayak. “Comparative Evaluation of Autologous Serum Skin Test and Autologous Plasma Skin Test in Chronic Urticaria”. Journal of Pakistan Association of Dermatologists, vol. 23, no. 4, Dec. 2016, pp. 378-83, https://www.jpad.com.pk/index.php/jpad/article/view/283.