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1 "AmHeartJ" 0.0 0.0 0.0 x_fact 6.640875 y_fact 7.243449
2 "AmJCardiol" 0.0 0.0 0.0 x_fact 9.369579 y_fact 11.202410
3 "AmJMed" 0.0 0.0 0.0 x_fact 2.734411 y_fact 3.089336
4 "AnnInternMed" 0.0 0.0 0.0 x_fact 2.250525 y_fact 2.946681
5 "AnnThoracSurg" 0.0 0.0 0.0 x_fact 3.460239 y_fact 7.177257
6 "ArchInternMed" 0.0 0.0 0.0 x_fact 3.332420 y_fact 4.028577
7 "BritMedJ" 0.0 0.0 0.0 x_fact 1.270200 y_fact 2.934128
8 "Chest" 0.0 0.0 0.0 x_fact 4.293344 y_fact 7.067698
9 "Circulation" 0.0 0.0 0.0 x_fact 9.459737 y_fact 15.626997
10 "CritCareMed" 0.0 0.0 0.0 x_fact 4.174655 y_fact 7.293664
11 "Heart" 0.0 0.0 0.0 x_fact 4.326440 y_fact 4.770383
12 "HeartLung" 0.0 0.0 0.0 x_fact 0.545513 y_fact 0.657354
13 "JAdvNurs" 0.0 0.0 0.0 x_fact 0.479321 y_fact 1.379759
14 "JAmCollCardiol" 0.0 0.0 0.0 x_fact 9.741623 y_fact 13.594449
15 "JamaJAmMedAssoc" 0.0 0.0 0.0 x_fact 3.654250 y_fact 5.467680
16 "NewEnglJMed" 0.0 0.0 0.0 x_fact 2.792614 y_fact 5.222314
17 "NursRes" 0.0 0.0 0.0 x_fact 0.205423 y_fact 0.297864
*Matrix 
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