*Vertices 4
1 "中国危重病急救医学" 0.0 0.0 0.0 x_fact 3.498191 y_fact 47.527141
2 "中国急救医学" 0.0 0.0 0.0 x_fact 12.907117 y_fact 25.211098
3 "临床急诊杂志" 0.0 0.0 0.0 x_fact 4.583836 y_fact 4.825090
4 "中华急诊医学杂志" 0.0 0.0 0.0 x_fact 2.774427 y_fact 22.436671
*Matrix 
0.000000 0.658114 0.609705 0.000000 
0.658114 0.000000 0.980170 0.276243 
0.609705 0.980170 0.000000 0.439452 
0.000000 0.276243 0.439452 0.000000