*Vertices 3
1 "中华儿科杂志" 0.0 0.0 0.0 x_fact 1.008403 y_fact 20.168067
2 "中华妇产科杂志" 0.0 0.0 0.0 x_fact 0.840336 y_fact 21.344538
3 "中国优生与遗传杂志" 0.0 0.0 0.0 x_fact 23.529412 y_fact 58.487395
*Matrix 
0.000000 0.000000 0.275254 
0.000000 0.000000 0.389236 
0.275254 0.389236 0.000000