                 if tumor.extent.depth? then tumor.extent.depth else null
           'breastTNMStage':
               label: 'TNM Stage'
-              coll: [
+              collection: [
                 'Breast'
               ]
               accessor: (tumor) ->

        # obtained and plotted on the charts.
        #
        # TODO - push the common config data into the respective services.
        #   See the k-trans.coffee TODO item.
        #
        CHART_DATA_CONFIG =
          'fxlKTrans':
              label: 'FXL Ktrans'
              coll: [
                'all'
              ]
              accessor: (modelingResult) -> modelingResult.fxlKTrans.average
          'fxrKTrans':
              label: 'FXR Ktrans'
              coll: [
                'all'
              ]
              accessor: (modelingResult) -> modelingResult.fxrKTrans.average
          'deltaKTrans':
              label: 'delta Ktrans'
              coll: [
                'all'
              ]
              accessor: (modelingResult) -> modelingResult.deltaKTrans.average
          'vE':
              label: 'v_e'
              coll: [
                'all'
              ]
              accessor: (modelingResult) -> modelingResult.vE.average
          'tauI':
              label: 'tau_i'
              coll: [
                'all'
              ]
              accessor: (modelingResult) -> modelingResult.tauI.average
          'tumorLength':
              label: 'Tumor Length (mm)'
              coll: [
                'all'
              ]
              accessor: (tumor) ->

                stage.replace /^\d+/, roman.romanize
          'necrosisPercent':
              label: 'Necrosis Percent'
              collection: [
                'Sarcoma'
              ]
              accessor: (tumor) ->
