*Vertices 4
1 "中国超声医学杂志" 0.0 0.0 0.0 x_fact 6.498195 y_fact 16.028881
2 "中国医学影像技术" 0.0 0.0 0.0 x_fact 22.382671 y_fact 47.436823
3 "中华放射学杂志" 0.0 0.0 0.0 x_fact 1.155235 y_fact 23.176895
4 "中华超声影像学杂志" 0.0 0.0 0.0 x_fact 7.075812 y_fact 13.357401
*Matrix 
0.000000 0.390024 0.000000 0.927921 
0.390024 0.000000 0.408035 0.421831 
0.000000 0.408035 0.000000 0.000000 
0.927921 0.421831 0.000000 0.000000