*Vertices 4
1 "中华护理杂志" 0.0 0.0 0.0 x_fact 9.814613 y_fact 21.046892
2 "中国实用护理杂志" 0.0 0.0 0.0 x_fact 14.122137 y_fact 31.515812
3 "护理学杂志" 0.0 0.0 0.0 x_fact 20.229008 y_fact 26.717557
4 "护士进修杂志" 0.0 0.0 0.0 x_fact 16.303162 y_fact 20.719738
*Matrix 
0.000000 0.776411 0.950675 0.971157 
0.776411 0.000000 0.772800 0.855156 
0.950675 0.772800 0.000000 0.945180 
0.971157 0.855156 0.945180 0.000000