TBI	Traumatic Brain Injury
NSI	Neurobehavioral Symptom Inventory
2LCSB	Two-level cervical sympathetic chain block
SGB	Stellate ganglion block
BBB	Blood–brain barrier
RCT	Randomized controlled trial
PTSD	Posttraumatic stress disorder
GCS	Glasgow Coma Scale
HBOT	Hyperbaric Oxygen Therapy
IQR	Interquartile Range
BL	Baseline
1W	1-week
1M	1-month
2M	2-month
3M	3-month