*Vertices 3
1 "心肺血管病杂志" 0.0 0.0 0.0 x_fact 7.969152 y_fact 9.254499
2 "中华结核和呼吸杂志" 0.0 0.0 0.0 x_fact 1.285347 y_fact 73.521851
3 "中华胸心血管外科杂志" 0.0 0.0 0.0 x_fact 1.285347 y_fact 17.223650
*Matrix 
0.000000 0.677674 0.762588 
0.677674 0.000000 0.000000 
0.762588 0.000000 0.000000