Talebi, S., Roudsari, A., Zolhavarieh, S., Majidi, L., Ghiasi, H., Poorolajal, J., & Vafaei, S. (2022). Comparison of the pain-killing effects of leech therapy versus physiotherapy in patients with knee osteoarthritis: A double-blind randomized clinical trial. Biomedical Research and Therapy, 9(6), 5095-5101. https://doi.org/10.15419/bmrat.v9i6.744