Postamputation limb pain in military personnel: separate but equal or separate and never equal?

aDepartment of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD, United States bDepartment of Neurology, Washington Veterans Affairs Medical Center, Washington, DC, United States cDepartment of Neurology, Uniformed Services University of the Health Sciences, Bethesda, MD, United States dDepartment of Neurology, George Washington University School of Medicine, Washington, DC, United States eDepartments of Anesthesiology and Critical Care Medicine, Neurology, Physical Medicine and Rehabilitation and Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, United States fDepartment of Physical Medicine and Rehabilitation and Anesthesiology, Walter Reed National Military Medical Center, Uniformed Services University of the Health Sciences, Bethesda, MD, United States Sponsorships or competing interests that may be relevant to content are disclosed at the end of this article. Funded in part by grants from MIRROR, Uniformed Services University of the Health Sciences, US Dept. of Defense, grant # HU00011920011.