*Vertices 3
1 "中华妇产科杂志" 0.0 0.0 0.0 x_fact 4.347826 y_fact 32.265446
2 "中国实用妇科与产科杂志" 0.0 0.0 0.0 x_fact 27.002288 y_fact 42.105263
3 "现代妇产科进展" 0.0 0.0 0.0 x_fact 20.366133 y_fact 25.629291
*Matrix 
0.000000 0.902248 0.910948 
0.902248 0.000000 0.956846 
0.910948 0.956846 0.000000