https://www.selleckchem.com/pr....oducts/pf-9363-ctx-6
Serum cystatin C has been considered as a significant prognostic factor for various malignancies. This study aimed to evaluate the relationship between serum cystatin C level before antitumor treatment and the prognosis of nasopharyngeal carcinoma (NPC) patients treated with intensity-modulated radiotherapy (IMRT). A cohort of 2077 NPC patients were enrolled between April 2009 and September 2012. The Kaplan-Meier curves and log rank tests were used to determine the differences of overall survival (OS) and disease-free survival (