During the visit, patients will have blood drawn for lab tests to monitor the progress of their liver disease, and may be asked to undergo an ultrasound examination of the liver to detect any abnormalities that may be attributed to liver cancer. Patients will also answer questions about their medical history particularly any outcomes or events related to their hepatitis C that have occurred since the HALT-C trial and may be asked to sign a release of information to allow researchers to obtain medical records from other clinics or physicians where they have received treatment.