*Vertices 2
1 "病毒学报" 0.0 0.0 0.0 x_fact 15.189873 y_fact 50.632911
2 "中华实验和临床病毒学杂志" 0.0 0.0 0.0 x_fact 17.721519 y_fact 49.367089
*Matrix 
0.000000 0.792794 
0.792794 0.000000