title: Correction for Ferreira et al., A Novel Method for Genotyping the Helicobacter pylori vacA Intermediate Region Directly in Gastric Biopsy Specimens.
authors.affiliation: IPATIMUP, Institute of Molecular Pathology and Immunology of the University of Porto, Porto, Portugal Medical Faculty of the University of Porto, Porto, Portugal.
authors.forename: Rui M
authors.initials: RM
authors.lastname: Ferreira
authors.affiliation: IPATIMUP, Institute of Molecular Pathology and Immunology of the University of Porto, Porto, Portugal Medical Faculty of the University of Porto, Porto, Portugal.
authors.forename: Jose C
authors.initials: JC
authors.lastname: Machado
authors.affiliation: NIHR Biomedical Research Unit, Nottingham Digestive Diseases Centre, University of Nottingham, Nottingham, United Kingdom.
authors.forename: Darren
authors.initials: D
authors.lastname: Letley
authors.affiliation: NIHR Biomedical Research Unit, Nottingham Digestive Diseases Centre, University of Nottingham, Nottingham, United Kingdom.
authors.forename: John C
authors.initials: JC
authors.lastname: Atherton
authors.affiliation: Department of Pathology, Complejo Hospitalario de Soria, Soria, Spain.
authors.forename: Maria L
authors.initials: ML
authors.lastname: Pardo
authors.affiliation: Unit of Nutrition, Environment and Cancer, Catalan Institute of Oncology, Barcelona, Spain.
authors.forename: Carlos A
authors.initials: CA
authors.lastname: Gonzalez
authors.affiliation: IPATIMUP, Institute of Molecular Pathology and Immunology of the University of Porto, Porto, Portugal Medical Faculty of the University of Porto, Porto, Portugal Department of Pathology, Centro Hospitalar de Sao João, Porto, Portugal.
authors.forename: Fatima
authors.initials: F
authors.lastname: Carneiro
authors.affiliation: IPATIMUP, Institute of Molecular Pathology and Immunology of the University of Porto, Porto, Portugal Medical Faculty of the University of Porto, Porto, Portugal.
authors.forename: Ceu
authors.initials: C
authors.lastname: Figueiredo