Using rats for their study, a team of researchers discovered that pain relief may originate in the brain, not in the spinal cord as previously assumed.
Health Advisories

Health Canada has seized several injectable drugs and medical devices, including products labelled to contain botulinum toxin type A or hyaluronic acid from Vivian Spa, located at 11-3415 Dixie Road, Mississauga, Ontario, because they are unauthorized and may pose serious health risks. These products may have been administered as treatments for cosmetic purposes. 
