Visualization and Analysis of the Mapping Knowledge Domain of Acupuncture and Central Nervous System Cell Apoptosis

Table 5

Keywords that appear more than 15 times.

Rank	Freq	Keyword	Burst
1	84	Apoptosis
2	83	Electroacupuncture
3	67	Acupuncture
4	44	Expression
5	39	Stroke
6	39	Activation
7	28	Cerebral ischaemia
8	27	Rat
9	25	Brain
10	23	Artery occlusion	3.38
11	21	Mechanism
12	21	Focal cerebral ischaemia
13	20	Neuroprotection
14	19	Oxidative stress
15	19	Ischaemia
16	17	Rapid tolerance	3.13
17	17	Model