*Vertices 8
1 "ArchInternMed" 0.0 0.0 0.0 x_fact 11.761466 y_fact 16.560459
2 "GeriatrNurs" 0.0 0.0 0.0 x_fact 1.518370 y_fact 1.612776
3 "JAmGeriatrSoc" 0.0 0.0 0.0 x_fact 12.721265 y_fact 21.713477
4 "JGerontolABiol" 0.0 0.0 0.0 x_fact 2.187082 y_fact 3.296357
5 "JamaJAmMedAssoc" 0.0 0.0 0.0 x_fact 10.510581 y_fact 23.011565
6 "NewEnglJMed" 0.0 0.0 0.0 x_fact 6.018409 y_fact 22.767682
7 "Sleep" 0.0 0.0 0.0 x_fact 1.919597 y_fact 10.085752
8 "Gerontologist" 0.0 0.0 0.0 x_fact 0.377626 y_fact 0.951931
*Matrix 
0.000000 0.447848 0.580986 0.397326 0.886023 0.703304 0.000000 0.000000 
0.447848 0.000000 0.926253 0.797369 0.355473 0.257507 0.251649 0.713187 
0.580986 0.926253 0.000000 0.829515 0.533489 0.363075 0.000000 0.483931 
0.397326 0.797369 0.829515 0.000000 0.355941 0.305776 0.000000 0.424902 
0.886023 0.355473 0.533489 0.355941 0.000000 0.746035 0.000000 0.000000 
0.703304 0.257507 0.363075 0.305776 0.746035 0.000000 0.000000 0.000000 
0.000000 0.251649 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 
0.000000 0.713187 0.483931 0.424902 0.000000 0.000000 0.000000 0.000000