*Vertices 4
1 "中华口腔医学杂志" 0.0 0.0 0.0 x_fact 2.985075 y_fact 15.991471
2 "牙体牙髓牙周病学杂志" 0.0 0.0 0.0 x_fact 11.087420 y_fact 31.343284
3 "实用口腔医学杂志" 0.0 0.0 0.0 x_fact 14.925373 y_fact 40.085288
4 "北京口腔医学" 0.0 0.0 0.0 x_fact 9.594883 y_fact 12.579957
*Matrix 
0.000000 0.462242 0.444791 0.773580 
0.462242 0.000000 0.448697 0.690088 
0.444791 0.448697 0.000000 0.655151 
0.773580 0.690088 0.655151 0.000000