Table 2.

MEDLINE search strategy

1	exp Craniocerebral Trauma/
2	((head or crani* or capitis or brain* or forebrain* or skull* or hemisphere or intracran* or orbit* or cerebr*) adj2 (injur* or trauma* or lesion* or damage* or wound* or destruction* or oedema* or edema* or fracture* or contusio* or pressur*)).ti,ab,kf.
3	(mtbi or tbis or tbi).ti,ab,kf.
4	concuss*.ti,ab,kf.
5	commotio*.ti,ab,kf.
6	or/1–5
7	Tai Ji/ or Qigong/
8	(t'ai chi* or tai chi* or tai ji* or taiji* or qi gong* or qigong* or chi kung* or chikung*).ti,ab,kf.
9	or/7–8
10	6 and 9