*Vertices 4
1 "中华传染病杂志" 0.0 0.0 0.0 x_fact 10.571429 y_fact 21.142857
2 "中华消化杂志" 0.0 0.0 0.0 x_fact 2.857143 y_fact 22.285714
3 "中华肝脏病杂志" 0.0 0.0 0.0 x_fact 8.285714 y_fact 33.714286
4 "肝脏" 0.0 0.0 0.0 x_fact 17.714286 y_fact 22.857143
*Matrix 
0.000000 0.000000 0.757295 0.758621 
0.000000 0.000000 0.241181 0.311010 
0.757295 0.241181 0.000000 0.952858 
0.758621 0.311010 0.952858 0.000000