Advance Publication by J-STAGE Japanese Journal of Infectious Diseases Anti-hepatitis C virus activity of a crude extract from longan (Dimocarpus longan Lour.) leaves Dadan Ramadhan Apriyanto, Chie Aoki, Sri Hartati, Muhammad Hanafi, Leonardus Broto Sugeng Kardono, Ade Arsianti, Melva Louisa, Tjahjani Mirawati Sudiro, Beti Ernawati Dewi, Pratiwi Sudarmono, Amin Soebandrio, and Hak Hotta Received: March 6, 2015. Accepted: June 22, 2015 Published online: August 7, 2015 DOI: 10.7883/yoken.JJID.2015.107 Advance Publication articles have been accepted by JJID but have not been copyedited or formatted for publication.