Global, regional, and national burden of traumatic brain injury and spinal cord injury, 1990-2016: a systematic analysis for the Global Burden of Disease Study 2016 - James, S L; Bannick, M S; Montjoy-Venning, W C; GBD 2016 Traumatic Brain Injury and Spinal Cord Injury Collaborators (Lancet Neurol, 2019)