*Vertices 2
1 "中国公共卫生" 0.0 0.0 0.0 x_fact 0.645161 y_fact 85.161290
2 "解放军预防医学杂志" 0.0 0.0 0.0 x_fact 5.806452 y_fact 14.838710
*Matrix 
0.000000 0.547163 
0.547163 0.000000