S. Lalitha, V. Anavarathan, V. Mahalakshmi, D. Periyasami, N. J. Muthukumar, and V. Banumathi. 2018. “Effectiveness of Attai Vidal (leech Therapy) on Naala Vibatha Karappan (stasis Eczema)”. World Journal of Pharmaceutical Sciences 6 (12):129-34. https://www.wjpsonline.com/index.php/wjps/article/view/effectiveness-attai-vidal-stasis-eczema.