Silva, F.M. et al. 2002. Low efficacy of an ultra-short term, once-daily dose triple therapy with omeprazole, azithromycin, and secnidazole for Helicobacter pylori eradication in peptic ulcer . Revista do Hospital das Clínicas. 57, 1 (Feb. 2002), 9–14. DOI:https://doi.org/10.1590/S0041-87812002000100002.