*Vertices 2
1 "中国公共卫生" 0.0 0.0 0.0 x_fact 2.678571 y_fact 41.666667
2 "中国卫生检验杂志" 0.0 0.0 0.0 x_fact 13.095238 y_fact 58.333333
*Matrix 
0.000000 0.343242 
0.343242 0.000000