*Vertices 12
1 "AnnThoracSurg" 0.0 0.0 0.0 x_fact 21.698034 y_fact 35.357591
2 "AnnVascSurg" 0.0 0.0 0.0 x_fact 1.375993 y_fact 1.815140
3 "EurJCardioThorac" 0.0 0.0 0.0 x_fact 6.398996 y_fact 8.799665
4 "EurJVascEndovasc" 0.0 0.0 0.0 x_fact 2.082811 y_fact 3.584274
5 "HeartSurgForum" 0.0 0.0 0.0 x_fact 0.878294 y_fact 1.141782
6 "JCardiacSurg" 0.0 0.0 0.0 x_fact 1.033041 y_fact 1.125052
7 "JCardiothorVascAn" 0.0 0.0 0.0 x_fact 0.715182 y_fact 1.597658
8 "JCardiovascSurg" 0.0 0.0 0.0 x_fact 1.944793 y_fact 2.183187
9 "JEndovascTher" 0.0 0.0 0.0 x_fact 1.129235 y_fact 2.204099
10 "JHeartValveDis" 0.0 0.0 0.0 x_fact 1.480552 y_fact 3.023839
11 "JThoracCardiovSur" 0.0 0.0 0.0 x_fact 17.984107 y_fact 23.713927
12 "JVascSurg" 0.0 0.0 0.0 x_fact 10.915935 y_fact 15.453785
*Matrix 
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