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2 "AnnRheumDis" 0.0 0.0 0.0 x_fact 7.561417 y_fact 9.610691
3 "ArthritRheumArthr" 0.0 0.0 0.0 x_fact 4.219713 y_fact 5.549019
4 "ArthritisResTher" 0.0 0.0 0.0 x_fact 7.844136 y_fact 8.694049
5 "ArthritisRheumUs" 0.0 0.0 0.0 x_fact 8.439426 y_fact 10.258662
6 "ClinExpRheumatol" 0.0 0.0 0.0 x_fact 6.662335 y_fact 7.768627
7 "ClinRheumatol" 0.0 0.0 0.0 x_fact 3.870265 y_fact 4.138936
8 "JImmunol" 0.0 0.0 0.0 x_fact 2.295117 y_fact 21.340896
9 "JRheumatol" 0.0 0.0 0.0 x_fact 8.506155 y_fact 11.377246
10 "Lupus" 0.0 0.0 0.0 x_fact 3.257415 y_fact 4.095036
11 "NewEnglJMed" 0.0 0.0 0.0 x_fact 0.783184 y_fact 4.212689
12 "Rheumatology" 0.0 0.0 0.0 x_fact 7.912621 y_fact 8.952184
13 "ScandJRheumatol" 0.0 0.0 0.0 x_fact 1.452228 y_fact 1.685778
*Matrix 
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