*Vertices 3
1 "中华心血管病杂志" 0.0 0.0 0.0 x_fact 2.500000 y_fact 28.750000
2 "临床心血管病杂志" 0.0 0.0 0.0 x_fact 11.666667 y_fact 19.375000
3 "心血管康复医学杂志" 0.0 0.0 0.0 x_fact 22.708333 y_fact 51.875000
*Matrix 
0.000000 0.882841 0.541577 
0.882841 0.000000 0.510372 
0.541577 0.510372 0.000000