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2 "AmJCardiol" 0.0 0.0 0.0 x_fact 6.920811 y_fact 8.096326
3 "AnnThoracSurg" 0.0 0.0 0.0 x_fact 5.048804 y_fact 8.062253
4 "CatheterCardioInte" 0.0 0.0 0.0 x_fact 3.183813 y_fact 4.011585
5 "Chest" 0.0 0.0 0.0 x_fact 1.698635 y_fact 3.244944
6 "Circulation" 0.0 0.0 0.0 x_fact 8.669553 y_fact 13.255366
7 "EurHeartJ" 0.0 0.0 0.0 x_fact 6.012868 y_fact 6.878720
8 "EurJCardioThorac" 0.0 0.0 0.0 x_fact 3.953460 y_fact 4.775219
9 "IntJCardiol" 0.0 0.0 0.0 x_fact 5.942717 y_fact 7.095184
10 "JAmCollCardiol" 0.0 0.0 0.0 x_fact 10.359169 y_fact 14.160303
11 "JThoracCardiovSur" 0.0 0.0 0.0 x_fact 4.311226 y_fact 5.752310
12 "JVascSurg" 0.0 0.0 0.0 x_fact 1.882028 y_fact 4.941575
13 "JamaJAmMedAssoc" 0.0 0.0 0.0 x_fact 2.235785 y_fact 3.805143
14 "Lancet" 0.0 0.0 0.0 x_fact 2.703786 y_fact 5.038783
15 "NewEnglJMed" 0.0 0.0 0.0 x_fact 2.238791 y_fact 4.195979
16 "TexHeartIJ" 0.0 0.0 0.0 x_fact 1.181528 y_fact 1.230634
*Matrix 
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