( ( ( ( Brain injury ) , ) ( ( concussion and ) ( Health Resources ) ) ) . )
(ROOT (NP (NP (NN Brain) (NN injury)) (, ,) (NP (NP (NN concussion)) (CC and) (NP (NNP Health) (NNPS Resources))) (. .)))
Brain injury, concussion and Health Resources.
(ROOT (S (NP (DT A) (PRN (-LRB- -LRB-) (NP (NN n)) (-RRB- -RRB-)) (NN concussion)) (VP (VBZ is) (NP (NP (DT the) (ADJP (RBS most) (JJ common)) (NN type)) (PP (IN of) (NP (NN brain) (NN injury))))) (. .)))