Comparison of cytokeratin 20 RNA and angiogenin in voided urine samples as diagnostic tools for bladder carcinoma. Evaluation of BCL-2 and transforming growth factor alpha oncoproteins in patients with chronic hepatitis C infection: impact on hepatocellular carcinoma Erratum to “Real-time PCR hTERT mRNA pattern in tumor core, edge, resection margin, and lymph nodes in laryngeal tumors: Relation to proliferative index and impact on prognosis” Real-time PCR hTERT mRNA pattern in tumor core, edge, resection margin, and lymph nodes in laryngeal tumors: relation to proliferative index and impact on prognosis INSULIN RESISTANCE IN PATIENTS WITH CHRONIC HEART FAILURE