*Vertices 8
1 "工业卫生与职业病" 0.0 0.0 0.0 x_fact 9.111446 y_fact 11.972892
2 "中国公共卫生" 0.0 0.0 0.0 x_fact 9.186747 y_fact 20.632530
3 "中华放射医学与防护杂志" 0.0 0.0 0.0 x_fact 0.301205 y_fact 15.888554
4 "中华劳动卫生职业病杂志" 0.0 0.0 0.0 x_fact 6.250000 y_fact 12.500000
5 "中华预防医学杂志" 0.0 0.0 0.0 x_fact 1.656627 y_fact 4.292169
6 "中国工业医学杂志" 0.0 0.0 0.0 x_fact 8.057229 y_fact 11.822289
7 "环境与职业医学" 0.0 0.0 0.0 x_fact 5.948795 y_fact 7.981928
8 "中国职业医学" 0.0 0.0 0.0 x_fact 12.349398 y_fact 14.909639
*Matrix 
0.000000 0.416623 0.000000 0.897142 0.407419 0.844375 0.827171 0.896444 
0.416623 0.000000 0.000000 0.355922 0.513173 0.353846 0.588227 0.416196 
0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.274033 
0.897142 0.355922 0.000000 0.000000 0.404201 0.795914 0.712422 0.808986 
0.407419 0.513173 0.000000 0.404201 0.000000 0.324162 0.484392 0.454918 
0.844375 0.353846 0.000000 0.795914 0.324162 0.000000 0.744656 0.884403 
0.827171 0.588227 0.000000 0.712422 0.484392 0.744656 0.000000 0.793493 
0.896444 0.416196 0.274033 0.808986 0.454918 0.884403 0.793493 0.000000