*Vertices 2
1 "云南师范大学学报" 0.0 0.0 0.0 x_fact 5.729167 y_fact 13.541667
2 "中华流行病学杂志" 0.0 0.0 0.0 x_fact 0.000000 y_fact 86.458333
*Matrix 
0.000000 0.591364 
0.591364 0.000000