*Vertices 11
1 "ActaNeurolScand" 0.0 0.0 0.0 x_fact 2.754625 y_fact 3.154340
2 "Brain" 0.0 0.0 0.0 x_fact 4.963902 y_fact 7.479937
3 "Cephalalgia" 0.0 0.0 0.0 x_fact 3.585040 y_fact 6.125864
4 "FunctNeurol" 0.0 0.0 0.0 x_fact 0.697177 y_fact 0.728163
5 "Headache" 0.0 0.0 0.0 x_fact 3.203917 y_fact 5.165308
6 "JNeurol" 0.0 0.0 0.0 x_fact 7.665851 y_fact 8.316549
7 "JNeurolNeurosurPs" 0.0 0.0 0.0 x_fact 6.987265 y_fact 8.908375
8 "Lancet" 0.0 0.0 0.0 x_fact 1.725901 y_fact 8.799926
9 "Neurology" 0.0 0.0 0.0 x_fact 10.169492 y_fact 21.218976
10 "Spine" 0.0 0.0 0.0 x_fact 0.629009 y_fact 15.232547
11 "Stroke" 0.0 0.0 0.0 x_fact 4.489821 y_fact 14.870015
*Matrix 
0.000000 0.828484 0.350172 0.782401 0.376280 0.955057 0.959312 0.286089 0.936745 0.000000 0.475772 
0.828484 0.000000 0.331215 0.734420 0.330903 0.899023 0.887944 0.203875 0.824230 0.000000 0.240474 
0.350172 0.331215 0.000000 0.792044 0.957758 0.358331 0.312229 0.000000 0.368958 0.000000 0.000000 
0.782401 0.734420 0.792044 0.000000 0.729070 0.779500 0.768853 0.232296 0.745207 0.000000 0.341294 
0.376280 0.330903 0.957758 0.729070 0.000000 0.384787 0.338054 0.000000 0.407353 0.000000 0.000000 
0.955057 0.899023 0.358331 0.779500 0.384787 0.000000 0.977248 0.264195 0.973445 0.000000 0.349233 
0.959312 0.887944 0.312229 0.768853 0.338054 0.977248 0.000000 0.264309 0.936668 0.000000 0.431845 
0.286089 0.203875 0.000000 0.232296 0.000000 0.264195 0.264309 0.000000 0.237374 0.000000 0.243284 
0.936745 0.824230 0.368958 0.745207 0.407353 0.973445 0.936668 0.237374 0.000000 0.000000 0.385709 
0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 
0.475772 0.240474 0.000000 0.341294 0.000000 0.349233 0.431845 0.243284 0.385709 0.000000 0.000000