*Vertices 3
1 "中国药房" 0.0 0.0 0.0 x_fact 6.810036 y_fact 76.344086
2 "药物流行病学杂志" 0.0 0.0 0.0 x_fact 4.659498 y_fact 8.960573
3 "中国药师" 0.0 0.0 0.0 x_fact 6.451613 y_fact 14.695341
*Matrix 
0.000000 0.568814 0.573905 
0.568814 0.000000 0.661829 
0.573905 0.661829 0.000000