*Vertices 4
1 "中国药学杂志" 0.0 0.0 0.0 x_fact 1.631702 y_fact 16.200466
2 "浙江大学学报医学版" 0.0 0.0 0.0 x_fact 1.282051 y_fact 13.403263
3 "中国药理学通报" 0.0 0.0 0.0 x_fact 3.729604 y_fact 57.459207
4 "中华流行病学杂志" 0.0 0.0 0.0 x_fact 0.349650 y_fact 12.937063
*Matrix 
0.000000 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.000000