Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Shan Yong Yi and Ke Jun Nan,Tumor-initiating stem cells in liver cancer,Cancer Biology & Therapy,1538-4047,Informa UK Limited,2008-03,7,3,325-330,https://cir.nii.ac.jp/crid/1360855569671633664,https://doi.org/10.4161/cbt.7.3.5527