*Vertices 3
1 "中华外科杂志" 0.0 0.0 0.0 x_fact 5.032823 y_fact 45.733042
2 "肠外与肠内营养" 0.0 0.0 0.0 x_fact 4.814004 y_fact 19.256018
3 "中国实用外科杂志" 0.0 0.0 0.0 x_fact 10.940919 y_fact 35.010941
*Matrix 
0.000000 0.000000 0.486932 
0.000000 0.000000 0.244764 
0.486932 0.244764 0.000000