DL N=4 FORMAT = FULLMATRIX DIAGONAL PRESENT LABELS: BritMedJ JamaJAmMedAssoc Lancet NewEnglJMed DATA: 0.000000 0.403756 0.506352 0.367461 0.403756 0.000000 0.575825 0.738017 0.506352 0.575825 0.000000 0.657332 0.367461 0.738017 0.657332 0.000000