Dr. Israel Morales Garcia, & Dr. Gibran Guadalupe Sanchez Salas. (2023). Control of Acute Pain in a Patient with Acute Chronic Low Back Pain by Using Ecoguided Facetary Analgesic Blockin the Emergency Room, Report of Two Cases. International Journal of Medical Science and Clinical Research Studies, 3(11), 2554–2557. https://doi.org/10.47191/ijmscrs/v3-i11-01