Prognostic biomarker GSTK1 in head and neck squamous cell carcinoma and its correlation with immune infiltration and DNA methylation oleh Yao Feng, Ying-Hui Zhou, Ying-Hui Zhou, Jie Zhao, Xiao-Lin Su, Ning-Xin Chen, Ya-Qiong Zhao, Qin Ye, Jing Hu, Ze-Yue Ou-Yang, Meng-Mei Zhong, Yi-Fan Yang, Peng-Ju Han, Yue Guo, Yun-Zhi Feng