*Vertices 3
1 "中风与神经疾病杂志" 0.0 0.0 0.0 x_fact 20.370370 y_fact 33.641975
2 "中华神经科杂志" 0.0 0.0 0.0 x_fact 2.160494 y_fact 31.790123
3 "脑与神经疾病杂志" 0.0 0.0 0.0 x_fact 27.777778 y_fact 34.567901
*Matrix 
0.000000 0.804988 0.937263 
0.804988 0.000000 0.924140 
0.937263 0.924140 0.000000