*Vertices 4
1 "中华内科杂志" 0.0 0.0 0.0 x_fact 0.931099 y_fact 20.111732
2 "中华肾脏病杂志" 0.0 0.0 0.0 x_fact 6.331471 y_fact 19.366853
3 "肾脏病与透析肾移植杂志" 0.0 0.0 0.0 x_fact 5.214153 y_fact 29.795158
4 "中国血液净化" 0.0 0.0 0.0 x_fact 22.718808 y_fact 30.726257
*Matrix 
0.000000 0.234405 0.000000 0.320767 
0.234405 0.000000 0.401224 0.730121 
0.000000 0.401224 0.000000 0.689777 
0.320767 0.730121 0.689777 0.000000