*Vertices 2
1 "疾病控制杂志" 0.0 0.0 0.0 x_fact 17.500000 y_fact 75.000000
2 "预防医学情报杂志" 0.0 0.0 0.0 x_fact 7.500000 y_fact 25.000000
*Matrix 
0.000000 0.644472 
0.644472 0.000000