anchor.diff:  
                   var geneDataColl = new GeneDataColl({
                       cancer_study_id: cancer_study_id_selected,
  -                    genes: GeneSet(gene_list).getAllGenes().join(" "),
  +                    genes: typeof gene_list === "string" ? GeneSet(gene_list).getAllGenes().join(" ") : GeneSet(gene_list.innerHTML).getAllGenes().join(" "),
                       case_list: cases,
                       genetic_profiles: genetic_profiles,
                       z_score_threshold: zscore_threshold,
  
positive.code:                     select_clinical_attributes.prop('disabled', enable_disable).trigger("liszt:updated");
                      zoom.attr('disabled', enable_disable);
                      sortBy.prop('disabled', enable_disable).trigger("liszt:updated");
                      //sortBy.attr('disabled', enable_disable);
                  };
  
                  // handler for when user selects a clinical attribute to visualization
  
negative.code: 
                                  // enable the option to sort by clinical data
                                  $(sortBy.add('option[value="clinical"]')[1]).prop('disabled', false);
  
                                  // sort by genes by default
                                  sortBy.val('genes');
  
                                  toggleControls(true);
  
  