*Vertices 13
1 "ActaNeurochir" 0.0 0.0 0.0 x_fact 3.544158 y_fact 3.978430
2 "AmJNeuroradiol" 0.0 0.0 0.0 x_fact 5.293597 y_fact 7.915698
3 "AnnNeurol" 0.0 0.0 0.0 x_fact 2.854673 y_fact 4.050466
4 "ArchNeurolChicago" 0.0 0.0 0.0 x_fact 3.577089 y_fact 4.348900
5 "JClinNeurosci" 0.0 0.0 0.0 x_fact 3.105769 y_fact 3.171630
6 "JNeurolNeurosurPs" 0.0 0.0 0.0 x_fact 6.081874 y_fact 7.316772
7 "JNeurosurg" 0.0 0.0 0.0 x_fact 7.108897 y_fact 11.727417
8 "Lancet" 0.0 0.0 0.0 x_fact 1.092885 y_fact 5.468541
9 "Neurology" 0.0 0.0 0.0 x_fact 7.075967 y_fact 13.345133
10 "Neurosurgery" 0.0 0.0 0.0 x_fact 6.269167 y_fact 8.738963
11 "Spine" 0.0 0.0 0.0 x_fact 2.023175 y_fact 13.499496
12 "Stroke" 0.0 0.0 0.0 x_fact 4.497088 y_fact 11.398111
13 "SurgNeurol" 0.0 0.0 0.0 x_fact 4.552658 y_fact 5.040443
*Matrix 
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0.988720 0.573510 0.000000 0.000000 0.941027 0.336943 0.979961 0.000000 0.000000 0.983994 0.212568 0.250472 0.000000