DL N=4 TITLE = Citation pattern of BRIT MED J (cited) FORMAT = FULLMATRIX DIAGONAL PRESENT LABELS: BritMedJ JamaJAmMedAssoc Lancet NewEnglJMed DATA: 0.000000 0.365106 0.480743 0.365796 0.365106 0.000000 0.528219 0.743542 0.480743 0.528219 0.000000 0.670137 0.365796 0.743542 0.670137 0.000000