Vallejo Martínez, M., Lino, N., Palma, M., & Guamán, J. (2018). Pyramidal Muscle Pain in cancer patients. Treatment directed by Ultrasound without Perineural Hydrodissection of the Sciatic. Presentation of 10 cases. Oncology Journal (Ecuador), 28(2), 138–149. https://doi.org/10.33821/201