*Vertices 3
1 "中华肾脏病杂志" 0.0 0.0 0.0 x_fact 8.414239 y_fact 33.333333
2 "肾脏病与透析肾移植杂志" 0.0 0.0 0.0 x_fact 3.559871 y_fact 42.071197
3 "中国血液净化" 0.0 0.0 0.0 x_fact 19.741100 y_fact 24.595469
*Matrix 
0.000000 0.405766 0.667741 
0.405766 0.000000 0.888507 
0.667741 0.888507 0.000000