*Vertices 3
1 "生物医学工程学杂志" 0.0 0.0 0.0 x_fact 5.594406 y_fact 57.342657
2 "复旦学报医学科学版" 0.0 0.0 0.0 x_fact 0.000000 y_fact 13.986014
3 "中国医疗器械杂志" 0.0 0.0 0.0 x_fact 14.685315 y_fact 28.671329
*Matrix 
0.000000 0.000000 0.432174 
0.000000 0.000000 0.480000 
0.432174 0.480000 0.000000