Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) CHLEBOWSKI RT,Long-term survival following levamisole or placebo adjuvant treatment of colorectal cancer : A Western Oncology Group trial,Oncology,,,1988,45,,141-143,https://cir.nii.ac.jp/crid/1570572700500278400,