Table 5.

Keywords information table

Freq	Centrality	Keyword	Year	ClusterID
1109	0.31	cas9	2013	3
1085	0	crispr/cas9	2013	7
1058	0.07	crispr	2013	3
861	0.89	system	2012	0
858	0	expression	2013	3
832	0.12	genome editing	2013	3
793	0	gene	2013	0
761	0	crispr cas9	2015	3
696	0	genome	2011	7
690	0.44	dna	2010	4