Freitas Amorim, A. I., Rocha Melo, J., Bettencourt Abreu , J., & Alves Caldeira , M. F. . (2023). Pulsed Radiofrequency of Genicular Nerves Guided by Ultrasound: Three Different Cases: Pulsed Radiofrequency in Chronic Knee Pain. Journal of the Portuguese Society of Anesthesiology, 32(2). https://doi.org/10.25751/rspa.28049