Brain Circuit That "Invents" Chronic Pain Identified  Neuroscience NewsDeconstruction of a spino-brainโ€“spinal cord circuit that drives chronic pain  NatureWhat Causes Chronic Pain? Scientists Identify Key Culprit in the Brain  SciTechDailyPain circuit Chen et al (IMAGE)  EurekAlert!Newly Discovered Chronic Pain Circuit Unveils Potential Avenues for Innovative Treatments  Bioengineer.org