*Vertices 3
1 "中华护理杂志" 0.0 0.0 0.0 x_fact 2.717901 y_fact 11.246485
2 "中国实用护理杂志" 0.0 0.0 0.0 x_fact 12.464855 y_fact 34.551703
3 "护理研究" 0.0 0.0 0.0 x_fact 32.083724 y_fact 54.201812
*Matrix 
0.000000 0.603309 0.760244 
0.603309 0.000000 0.655881 
0.760244 0.655881 0.000000