*Vertices 3
1 "癌症" 0.0 0.0 0.0 x_fact 15.476190 y_fact 51.190476
2 "中华肿瘤杂志" 0.0 0.0 0.0 x_fact 4.285714 y_fact 30.476190
3 "肿瘤防治研究" 0.0 0.0 0.0 x_fact 13.809524 y_fact 18.333333
*Matrix 
0.000000 0.443200 0.847994 
0.443200 0.000000 0.730697 
0.847994 0.730697 0.000000