Cerebrovascular reactivity assessed by transcranial Doppler ultrasound in sport-related concussion: a systematic review
Andrew J Gardner, Can Ozan Tan, Philip N Ainslie, Paul van Donkelaar, Peter Stanwell, Christopher R Levi, Grant L Iverson
British Journal of Sports Medicine Aug 2015, 49 (16) 1050-1055; DOI: 10.1136/bjsports-2014-093901