*Vertices 12
1 "AnnThoracSurg" 0.0 0.0 0.0 x_fact 17.127767 y_fact 26.254751
2 "Chest" 0.0 0.0 0.0 x_fact 3.549072 y_fact 9.244355
3 "Circulation" 0.0 0.0 0.0 x_fact 11.846076 y_fact 31.435837
4 "EurJCardioThorac" 0.0 0.0 0.0 x_fact 4.982674 y_fact 6.586743
5 "HeartSurgForum" 0.0 0.0 0.0 x_fact 0.625978 y_fact 0.802034
6 "JCardiacSurg" 0.0 0.0 0.0 x_fact 0.734965 y_fact 0.796445
7 "JCardiothorVascAn" 0.0 0.0 0.0 x_fact 0.491840 y_fact 1.081489
8 "JCardiovascSurg" 0.0 0.0 0.0 x_fact 0.947351 y_fact 1.106640
9 "JHeartValveDis" 0.0 0.0 0.0 x_fact 1.226805 y_fact 2.257992
10 "JThoracCardiovSur" 0.0 0.0 0.0 x_fact 14.023027 y_fact 17.851554
11 "LungCancerJIaslc" 0.0 0.0 0.0 x_fact 0.472278 y_fact 1.626425
12 "ThoracCardiovSurg" 0.0 0.0 0.0 x_fact 0.863514 y_fact 0.955734
*Matrix 
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