TY - JOUR AU - Sanchez-Delgado, J; Gene, E; Suarez, D TI - Has H. pylori prevalence in bleeding peptic ulcer been underestimated? A meta-regression JO - Am J Gastroenterol VL - 106 PY - 2011 DO - 10.1038/ajg.2011.2 SP - 398 EP - 405 N1 - et al. ER -