*Vertices 4
1 "中华眼科杂志" 0.0 0.0 0.0 x_fact 5.410822 y_fact 21.342685
2 "眼科新进展" 0.0 0.0 0.0 x_fact 14.028056 y_fact 29.859719
3 "眼科研究" 0.0 0.0 0.0 x_fact 9.418838 y_fact 13.426854
4 "中国实用眼科杂志" 0.0 0.0 0.0 x_fact 23.847695 y_fact 35.370741
*Matrix 
0.000000 0.482463 0.893149 0.934737 
0.482463 0.000000 0.583803 0.551030 
0.893149 0.583803 0.000000 0.881759 
0.934737 0.551030 0.881759 0.000000