*Vertices 2
1 "中华肾脏病杂志" 0.0 0.0 0.0 x_fact 11.158798 y_fact 44.206009
2 "肾脏病与透析肾移植杂志" 0.0 0.0 0.0 x_fact 4.721030 y_fact 55.793991
*Matrix 
0.000000 0.405766 
0.405766 0.000000