Figure 1.

ROC of serum Cyfra21-1, SCCAg, ferritin, and CEA for patients with OSCC/OPSCC.
Abbreviations: CEA, carcinoembryonic antigen; Cyfra21-1, cytokeratin 19 fragment; OSCC/OPSCC, oral/oropharyngeal squamous carcinoma; ROC, receiver operating characteristic; SCCAg, squamous cell carcinoma antigen.