Presence of the Genes cagA, cagE, virB11 and Allelic Variation of vacA of Helicobacter pylori Are Associated with the Activity of Gastritis
Pedro Pinheiro de Negreiros Bessa, Francivandi Coelho Barbosa, Ana Paula Santos do Carmo, Gildo Barreira Furtado, Fernanda Capelo Barroso, Silvia Helena Barem Rabenhosrt

Open J. Gastroenterol. Vol.4 No.11, November 24, 2014
DOI:10.4236/ojgas.2014.411049