Management of Hepatitis C Virus Infection: The Basics; New and Investigational Antiretroviral Drugs for HIV Infection: Mechanisms of Action and Early Research Findings; Vitamin D, Bone, and HIV Infection; Epidermodysplasia Verruciformis in an HIV-Infected Man: A Case Report and Review of the Literature; Highlights of the 2012 American Association for the Study of Liver Diseases Meeting