*Vertices 4
1 "中华消化杂志" 0.0 0.0 0.0 x_fact 1.835595 y_fact 7.262570
2 "世界华人消化杂志" 0.0 0.0 0.0 x_fact 18.515563 y_fact 67.358340
3 "中华肝脏病杂志" 0.0 0.0 0.0 x_fact 2.873105 y_fact 9.976057
4 "胃肠病学和肝病学杂志" 0.0 0.0 0.0 x_fact 13.008779 y_fact 15.403033
*Matrix 
0.000000 0.333839 0.276236 0.475762 
0.333839 0.000000 0.425121 0.952216 
0.276236 0.425121 0.000000 0.548314 
0.475762 0.952216 0.548314 0.000000