Copyright the American Society of Interventional Pain Physicians under a Creative Commons license (CC-BY-NC), per publisher's open access statement at https://www.painphysicianjournal.com/journals/about.
Except where otherwise noted, this item's license is described as Copyright the American Society of Interventional Pain Physicians under a Creative Commons license (CC-BY-NC), per publisher's open access statement at https://www.painphysicianjournal.com/journals/about.