Variability in the Precore and Core Promoter Regions of HBV Strains in Morocco: Characterization and Impact on Liver Disease Progression. - Kitab, Bouchra; El Feydi, Abdellah Essaid; Afifi, Rajaa; Trepo, Christian; Benazzouz, Mustapha; Essamri, Wafaa; Zoulim, Fabien; Chemin, Isabelle; Alj, Hanane Salih; Ezzikouri, Sayeh; Benjelloun, Soumaya; Ray, Ranjit (PLoS ONE, 2012)