*Vertices 3
1 "中华口腔医学杂志" 0.0 0.0 0.0 x_fact 6.474820 y_fact 30.215827
2 "实用口腔医学杂志" 0.0 0.0 0.0 x_fact 19.064748 y_fact 56.474820
3 "口腔正畸学" 0.0 0.0 0.0 x_fact 4.676259 y_fact 13.309353
*Matrix 
0.000000 0.514726 0.444131 
0.514726 0.000000 0.385379 
0.444131 0.385379 0.000000