Fig. 2From: A pilot study to profile salivary angiogenic factors to detect head and neck cancersa, b Salivary angiogenic factor concentrations between HPV-negative HNSCC patients (n = 30) and healthy controls (n = 38) and (c, d, e) and angiogenic factor concentrations in the saliva collected from HPV-positive HNSCC patients (n = 28) and healthy controls. *p < 0.05 and **p < 0.01Back to article page