*Vertices 4
1 "华西口腔医学杂志" 0.0 0.0 0.0 x_fact 11.201629 y_fact 22.606925
2 "中华口腔医学杂志" 0.0 0.0 0.0 x_fact 3.462322 y_fact 15.885947
3 "实用口腔医学杂志" 0.0 0.0 0.0 x_fact 15.682281 y_fact 39.714868
4 "口腔颌面外科杂志" 0.0 0.0 0.0 x_fact 15.478615 y_fact 21.792261
*Matrix 
0.000000 0.616221 0.563363 0.686356 
0.616221 0.000000 0.451077 0.813915 
0.563363 0.451077 0.000000 0.619773 
0.686356 0.813915 0.619773 0.000000