*Vertices 3
1 "中华口腔医学杂志" 0.0 0.0 0.0 x_fact 8.355091 y_fact 26.631854
2 "口腔医学研究" 0.0 0.0 0.0 x_fact 11.227154 y_fact 36.553525
3 "口腔颌面修复学杂志" 0.0 0.0 0.0 x_fact 13.054830 y_fact 36.814621
*Matrix 
0.000000 0.591932 0.584206 
0.591932 0.000000 0.265529 
0.584206 0.265529 0.000000