code improvement from hongxin's suggestions
code improvement from hongxin's suggestions

bihealth/cbioportal,kalletlak/cbioportal,IntersectAustralia/cbioportal,jjgao/cbioportal,sheridancbio/cbioportal,shrumit/cbioportal-gsoc-final,kalletlak/cbioportal,zhx828/cbioportal,angelicaochoa/cbioportal,adamabeshouse/cbioportal,gsun83/cbioportal,sheridancbio/cbioportal,kalletlak/cbioportal,pughlab/cbioportal,angelicaochoa/cbioportal,angelicaochoa/cbioportal,inodb/cbioportal,pughlab/cbioportal,angelicaochoa/cbioportal,bihealth/cbioportal,yichaoS/cbioportal,onursumer/cbioportal,bihealth/cbioportal,inodb/cbioportal,onursumer/cbioportal,cBioPortal/cbioportal,onursumer/cbioportal,onursumer/cbioportal,mandawilson/cbioportal,d3b-center/pedcbioportal,zhx828/cbioportal,jjgao/cbioportal,sheridancbio/cbioportal,yichaoS/cbioportal,d3b-center/pedcbioportal,shrumit/cbioportal-gsoc-final,bihealth/cbioportal,sheridancbio/cbioportal,gsun83/cbioportal,gsun83/cbioportal,shrumit/cbioportal-gsoc-final,angelicaochoa/cbioportal,mandawilson/cbioportal,pughlab/cbioportal,kalletlak/cbioportal,gsun83/cbioportal,kalletlak/cbioportal,gsun83/cbioportal,pughlab/cbioportal,zhx828/cbioportal,yichaoS/cbioportal,adamabeshouse/cbioportal,n1zea144/cbioportal,yichaoS/cbioportal,gsun83/cbioportal,adamabeshouse/cbioportal,yichaoS/cbioportal,jjgao/cbioportal,mandawilson/cbioportal,cBioPortal/cbioportal,inodb/cbioportal,sheridancbio/cbioportal,angelicaochoa/cbioportal,d3b-center/pedcbioportal,IntersectAustralia/cbioportal,yichaoS/cbioportal,shrumit/cbioportal-gsoc-final,adamabeshouse/cbioportal,d3b-center/pedcbioportal,mandawilson/cbioportal,adamabeshouse/cbioportal,bihealth/cbioportal,inodb/cbioportal,cBioPortal/cbioportal,n1zea144/cbioportal,pughlab/cbioportal,onursumer/cbioportal,pughlab/cbioportal,angelicaochoa/cbioportal,shrumit/cbioportal-gsoc-final,n1zea144/cbioportal,cBioPortal/cbioportal,zhx828/cbioportal,inodb/cbioportal,yichaoS/cbioportal,onursumer/cbioportal,mandawilson/cbioportal,shrumit/cbioportal-gsoc-final,adamabeshouse/cbioportal,zhx828/cbioportal,bihealth/cbioportal,cBioPortal/cbioportal,jjgao/cbioportal,mandawilson/cbioportal,pughlab/cbioportal,jjgao/cbioportal,kalletlak/cbioportal,n1zea144/cbioportal,sheridancbio/cbioportal,bihealth/cbioportal,zhx828/cbioportal,gsun83/cbioportal,IntersectAustralia/cbioportal,jjgao/cbioportal,IntersectAustralia/cbioportal,d3b-center/pedcbioportal,adamabeshouse/cbioportal,kalletlak/cbioportal,IntersectAustralia/cbioportal,jjgao/cbioportal,n1zea144/cbioportal,n1zea144/cbioportal,zhx828/cbioportal,mandawilson/cbioportal,n1zea144/cbioportal,cBioPortal/cbioportal,d3b-center/pedcbioportal,inodb/cbioportal,d3b-center/pedcbioportal,IntersectAustralia/cbioportal,shrumit/cbioportal-gsoc-final,inodb/cbioportal,IntersectAustralia/cbioportal