*Vertices 4
1 "Gerontologist" 0.0 0.0 0.0 x_fact 7.739109 y_fact 12.265758
2 "IntJGeriatrPsych" 0.0 0.0 0.0 x_fact 2.214651 y_fact 11.024580
3 "JAmGeriatrSoc" 0.0 0.0 0.0 x_fact 17.863227 y_fact 44.366026
4 "JGerontolABiol" 0.0 0.0 0.0 x_fact 6.984668 y_fact 32.343636
*Matrix 
0.000000 0.474488 0.772569 0.331536 
0.474488 0.000000 0.349788 0.000000 
0.772569 0.349788 0.000000 0.549030 
0.331536 0.000000 0.549030 0.000000