*Vertices 4
1 "中华泌尿外科杂志" 0.0 0.0 0.0 x_fact 0.047281 y_fact 8.888889
2 "中国现代医学杂志" 0.0 0.0 0.0 x_fact 4.444444 y_fact 47.375887
3 "中国内镜杂志" 0.0 0.0 0.0 x_fact 6.903073 y_fact 35.177305
4 "中国医学工程" 0.0 0.0 0.0 x_fact 8.510638 y_fact 8.557920
*Matrix 
0.000000 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.989494 
0.000000 0.000000 0.000000 0.234258 
0.000000 0.989494 0.234258 0.000000