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2 "AmJHypertens" 0.0 0.0 0.0 x_fact 4.324265 y_fact 4.987556
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6 "BritMedJ" 0.0 0.0 0.0 x_fact 2.422667 y_fact 5.355369
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8 "Hypertension" 0.0 0.0 0.0 x_fact 4.524110 y_fact 6.919804
9 "JAmCollCardiol" 0.0 0.0 0.0 x_fact 9.626914 y_fact 13.039001
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*Matrix 
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