*Vertices 3
1 "中华神经科杂志" 0.0 0.0 0.0 x_fact 1.901141 y_fact 20.152091
2 "临床神经病学杂志" 0.0 0.0 0.0 x_fact 14.828897 y_fact 47.148289
3 "临床神经电生理学杂志" 0.0 0.0 0.0 x_fact 13.307985 y_fact 32.699620
*Matrix 
0.000000 0.465445 0.491327 
0.465445 0.000000 0.335465 
0.491327 0.335465 0.000000