Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SHEIKH MS,Role of p21^ in cell death and DNA repair as studied using a tetracycline-inducible system in p53-deficient cells,Oncogene,,,1997,14,,1875-1882,https://cir.nii.ac.jp/crid/1573105976220066432,https://doi.org/10.1038/sj.onc.1201004