Correction: Relationship between Tobacco, IcagA and vacA i1 Virulence Factors and Bacterial Load in Patients Infected by Helicobacter pylori

There are errors in the Funding section. The complete, correct funding information is as follows: This research was supported by grants from the Fundación Bienvenida Navarro-Luciano Trípodi (FBNLT01/2009); the Generalitat Valenciana Proyectos Precompetitivos (GV-PP2008/317) to MRG; by Fundación para el fomento de la Investigación del Hospital General Universitario de Elche (FIBELX 08/01) to JCR; and by Instituto de Salud Carlos III http://www.eng.isciii.es/ (PI11/01403) to NA. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. The publisher apologizes for the error.