Yurdaydin C, Abbas Z, Buti M, Cornberg M, Esteban R, Etzion O, Gane EJ, Gish RG, Glenn JS, Hamid S, Heller T, Koh C, Lampertico P, Lurie Y, Manns M, Parana R, Rizzetto M, Urban S, Wedemeyer H; Hepatitis Delta International Network (HDIN). Treating chronic hepatitis delta: The need for surrogate markers of treatment efficacy. J Hepatol. 2019 May;70(5):1008-1015. Epub 2018 Dec 27. PMID: 30982526.