*Vertices 8
1 "卫生研究" 0.0 0.0 0.0 x_fact 5.382586 y_fact 9.182058
2 "中国地方病学杂志" 0.0 0.0 0.0 x_fact 10.290237 y_fact 22.744063
3 "中国地方病防治杂志" 0.0 0.0 0.0 x_fact 4.802111 y_fact 10.448549
4 "中国公共卫生" 0.0 0.0 0.0 x_fact 9.340369 y_fact 17.361478
5 "中华流行病学杂志" 0.0 0.0 0.0 x_fact 14.775726 y_fact 23.535620
6 "中华预防医学杂志" 0.0 0.0 0.0 x_fact 8.179420 y_fact 10.026385
7 "实用预防医学" 0.0 0.0 0.0 x_fact 0.738786 y_fact 3.113456
8 "现代预防医学" 0.0 0.0 0.0 x_fact 1.846966 y_fact 3.588391
*Matrix 
0.000000 0.202793 0.000000 0.648236 0.499328 0.678011 0.000000 0.336918 
0.202793 0.000000 0.839452 0.201876 0.000000 0.379224 0.000000 0.000000 
0.000000 0.839452 0.000000 0.000000 0.000000 0.235225 0.000000 0.000000 
0.648236 0.201876 0.000000 0.000000 0.834319 0.850627 0.316342 0.719923 
0.499328 0.000000 0.000000 0.834319 0.000000 0.836582 0.397915 0.678161 
0.678011 0.379224 0.235225 0.850627 0.836582 0.000000 0.381774 0.624638 
0.000000 0.000000 0.000000 0.316342 0.397915 0.381774 0.000000 0.322850 
0.336918 0.000000 0.000000 0.719923 0.678161 0.624638 0.322850 0.000000