code: def burczynski06() -> AnnData:
      
      filename = settings.datasetdir / 'burczynski06/GDS1615_full.soft.gz'
      url = 'ftp://ftp.ncbi.nlm.nih.gov/geo/datasets/GDS1nnn/GDS1615/soft/GDS1615_full.soft.gz'
      adata = sc.read(filename, backup_url=url)
      return adata
docs: Bulk data with conditions ulcerative colitis (UC) and Crohn's disease (CD).
  
      The study assesses transcriptional profiles in peripheral blood mononuclear
      cells from 42 healthy individuals, 59 CD patients, and 26 UC patients by
      hybridization to microarrays interrogating more than 22,000 sequences.
  
      Reference
      ---------
      Burczynski et al., "Molecular classification of Crohn's disease and
      ulcerative colitis patients using transcriptional profiles in peripheral
      blood mononuclear cells"
      J Mol Diagn 8, 51 (2006). PMID:16436634.