*Vertices 5
1 "ClinExpRheumatol" 0.0 0.0 0.0 x_fact 6.235278 y_fact 14.964667
2 "JRheumatol" 0.0 0.0 0.0 x_fact 26.756270 y_fact 49.411113
3 "Lupus" 0.0 0.0 0.0 x_fact 3.852016 y_fact 10.461411
4 "Medicine" 0.0 0.0 0.0 x_fact 3.367050 y_fact 4.350838
5 "Rheumatology" 0.0 0.0 0.0 x_fact 12.609117 y_fact 20.811972
*Matrix 
0.000000 0.742814 0.287565 0.621474 0.709964 
0.742814 0.000000 0.446599 0.722677 0.906370 
0.287565 0.446599 0.000000 0.689210 0.468893 
0.621474 0.722677 0.689210 0.000000 0.787187 
0.709964 0.906370 0.468893 0.787187 0.000000