KIF23 protein levels in pGBM samples. WuZhifeng SunLihua WangHongjun YaoJianshe JiangChuanlu XuWenhui YangZhengxiang 2013 <p>The KIF23 staining score  =  staining intensity × proportion of positively stained tumor cells. (A) Low KIF23 expression was defined as a staining score ≤4; (B) High KIF23 expression was defined as a staining score >4.</p>