*Vertices 4
1 "工业卫生与职业病" 0.0 0.0 0.0 x_fact 11.263736 y_fact 20.054945
2 "中华劳动卫生职业病杂志" 0.0 0.0 0.0 x_fact 7.142857 y_fact 19.780220
3 "中国工业医学杂志" 0.0 0.0 0.0 x_fact 15.934066 y_fact 26.373626
4 "中国职业医学" 0.0 0.0 0.0 x_fact 25.549451 y_fact 33.791209
*Matrix 
0.000000 0.774599 0.820790 0.778670 
0.774599 0.000000 0.855553 0.912437 
0.820790 0.855553 0.000000 0.882413 
0.778670 0.912437 0.882413 0.000000