TY - CONF AU - Barreiro de Acosta, Manuel PY - 2015 SN - 1873-9946 UR - http://hdl.handle.net/20.500.11940/4181 LA - eng TI - Durability of the anti-HBs titers after vaccination against Hepatitis B virus (HBV) in patients with Inflammatory Bowel Disease (IBD) VL - 9 ER -