*Vertices 3
1 "中华口腔医学杂志" 0.0 0.0 0.0 x_fact 2.972973 y_fact 19.459459
2 "实用口腔医学杂志" 0.0 0.0 0.0 x_fact 13.783784 y_fact 45.675676
3 "现代口腔医学杂志" 0.0 0.0 0.0 x_fact 21.351351 y_fact 34.864865
*Matrix 
0.000000 0.433552 0.793387 
0.433552 0.000000 0.557463 
0.793387 0.557463 0.000000