*Vertices 4
1 "AmJPublicHealth" 0.0 0.0 0.0 x_fact 6.207049 y_fact 21.636001
2 "JEpidemiolCommunH" 0.0 0.0 0.0 x_fact 10.241632 y_fact 19.507870
3 "JHealthSocBehav" 0.0 0.0 0.0 x_fact 2.881844 y_fact 8.468189
4 "SocSciMed" 0.0 0.0 0.0 x_fact 19.441366 y_fact 50.387941
*Matrix 
0.000000 0.548209 0.278038 0.534764 
0.548209 0.000000 0.276653 0.668748 
0.278038 0.276653 0.000000 0.454054 
0.534764 0.668748 0.454054 0.000000