*Vertices 3
1 "中草药" 0.0 0.0 0.0 x_fact 18.863049 y_fact 65.633075
2 "药学学报" 0.0 0.0 0.0 x_fact 4.134367 y_fact 20.155039
3 "天然产物研究与开发" 0.0 0.0 0.0 x_fact 10.206718 y_fact 14.211886
*Matrix 
0.000000 0.485872 0.881177 
0.485872 0.000000 0.656579 
0.881177 0.656579 0.000000