Survival analyses of different treatment modalities and clinical stage for hypopharyngeal carcinoma oleh Tian-Yun Lin, Tsung-Lun Lee, Tsung-Lun Lee, Yen-Bin Hsu, Yen-Bin Hsu, Shyh-Kuan Tai, Shyh-Kuan Tai, Ling-Wei Wang, Ling-Wei Wang, Muh-Hwa Yang, Muh-Hwa Yang, Muh-Hwa Yang, Pen-Yuan Chu, Pen-Yuan Chu