*Vertices 4
1 "病毒学报" 0.0 0.0 0.0 x_fact 1.606426 y_fact 7.429719
2 "中华流行病学杂志" 0.0 0.0 0.0 x_fact 7.429719 y_fact 40.763052
3 "中华实验和临床病毒学杂志" 0.0 0.0 0.0 x_fact 11.044177 y_fact 19.678715
4 "中华肝脏病杂志" 0.0 0.0 0.0 x_fact 2.008032 y_fact 32.128514
*Matrix 
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0.703554 0.395982 0.000000 0.248917 
0.000000 0.000000 0.248917 0.000000