*Vertices 3
1 "工业卫生与职业病" 0.0 0.0 0.0 x_fact 17.543860 y_fact 31.578947
2 "中华劳动卫生职业病杂志" 0.0 0.0 0.0 x_fact 9.649123 y_fact 29.824561
3 "中国工业医学杂志" 0.0 0.0 0.0 x_fact 21.929825 y_fact 38.596491
*Matrix 
0.000000 0.775522 0.826602 
0.775522 0.000000 0.855653 
0.826602 0.855653 0.000000