*Vertices 4
1 "AmJPublicHealth" 0.0 0.0 0.0 x_fact 4.981774 y_fact 17.722618
2 "BritMedJ" 0.0 0.0 0.0 x_fact 2.291269 y_fact 43.777122
3 "EthnicHealth" 0.0 0.0 0.0 x_fact 0.798472 y_fact 0.989412
4 "SocSciMed" 0.0 0.0 0.0 x_fact 13.678181 y_fact 37.510849
*Matrix 
0.000000 0.223569 0.693808 0.429572 
0.223569 0.000000 0.443600 0.349200 
0.693808 0.443600 0.000000 0.842439 
0.429572 0.349200 0.842439 0.000000