Fig. 2From: The prognostic significance of pretreatment squamous cell carcinoma antigen levels in cervical cancer patients treated by concurrent chemoradiation therapy and a comparison of dosimetric outcomes and clinical toxicities between tomotherapy and volumetric modulated arc therapyThe Kaplan–Meier survival curve of progression-free survival. Progression-free survival correlated with a overall treatment time of radiation therapy b T classification c N classification d pretreatment serum squamous cell carcinoma antigen (SCC Ag), and e post-treatment serum SCC AgBack to article page