TY - CONF AU - Costa Alcalde, José Javier PY - 2013 SN - 0270-9139 UR - http://hdl.handle.net/20.500.11940/3931 LA - eng TI - Dynamic Study of Hepatitis B Virus (HBV) Quasispecies in X Gene/Basal Core Promoter/preCore Region by Ultradeep Pyrosequencing (UDPS) Technology: High Rates of Deletions, De Novo Stop Codons, and Viral Genotype Mixtures VL - 58 ER -