*Vertices 7
1 "AgeAgeing" 0.0 0.0 0.0 x_fact 2.802135 y_fact 4.117423
2 "Gerontology" 0.0 0.0 0.0 x_fact 1.270810 y_fact 1.474139
3 "JAmGeriatrSoc" 0.0 0.0 0.0 x_fact 8.469945 y_fact 15.630957
4 "JGerontolABiol" 0.0 0.0 0.0 x_fact 6.659042 y_fact 9.658152
5 "JamaJAmMedAssoc" 0.0 0.0 0.0 x_fact 12.587368 y_fact 24.361418
6 "Lancet" 0.0 0.0 0.0 x_fact 9.035456 y_fact 22.544161
7 "NewEnglJMed" 0.0 0.0 0.0 x_fact 8.209429 y_fact 22.213750
*Matrix 
0.000000 0.805553 0.734885 0.653190 0.390300 0.425873 0.377058 
0.805553 0.000000 0.855519 0.903853 0.434099 0.411566 0.361886 
0.734885 0.855519 0.000000 0.870495 0.476721 0.276874 0.336029 
0.653190 0.903853 0.870495 0.000000 0.407702 0.278447 0.348967 
0.390300 0.434099 0.476721 0.407702 0.000000 0.615684 0.779969 
0.425873 0.411566 0.276874 0.278447 0.615684 0.000000 0.647187 
0.377058 0.361886 0.336029 0.348967 0.779969 0.647187 0.000000