Fig. 1From: Assessment of a panel of tumor markers for the differential diagnosis of benign and malignant effusions by well-based reverse phase protein arrayBox plots of protein concentration among benign, probable malignant and malignant cases. The protein concentrations are displayed by samples origin (a) and disease category (b). The protein concentrations of cytological positive specimens are higher than negative cases. Furthermore, the protein concentration of malignant case is higher than benign (p < 0.001) or probable malignant cases (p = 0.032). *, p < 0.05; **, p < 0.01; ***, p < 0.001Back to article page