REFERENCES
1. Nomura A, Stemmermann GN, Chyou PH, Perez-Perez GI, Blaser MJ. Helicobacter pylori infection and the risk for duodenal and gastric ulceration. Ann Intern Med. 1994; 120:977–981.
3. Kurata JH, Nogawa AN. Meta-analysis of risk factors for peptic ulcer. Nonsteroidal antiinflammatory drugs, Helicobacter pylori, and smoking. J Clin Gastroenterol. 1997; 24:2–17.
4. Huang JQ, Sridhar S, Hunt RH. Role of Helicobacter pylori infection and non-steroidal anti-inflammatory drugs in pep-tic-ulcer disease: a metaanalysis. Lancet. 2002; 359:14–22.
5. Kim JJ, Kim N, Lee BH, et al. Risk factors for development and recurrence of peptic ulcer disease. Korean J Gastroenterol. 2010; 56:220–228.
6. Hopkins RJ, Girardi LS, Turney EA. Relationship between Helicobacter pylori eradication and reduced duodenal and gastric ulcer recurrence: a review. Gastroenterology. 1996; 110:1244–1252.
7. Dupas JL, Corallo J, Helberz T, Zaï m M. Acid suppression therapy is not required after one-week anti-Helicobacter pylori triple therapy for duodenal ulcer healing. Gastroenterol Clin Biol. 2000; 24:638–643.
8. Goh KL, Navaratnam P, Peh SC, et al. Helicobacter pylori eradication with short-term therapy leads to duodenal ulcer healing without the need for continued acid suppression therapy. Eur J Gastroenterol Hepatol. 1996; 8:421–423.
9. Kim N, Lim SH, Lee KH, Jung HC, Song IS, Kim CY. Helicobacter pylori reinfection rate and duodenal ulcer recurrence in Korea. J Clin Gastroenterol. 1998; 27:321–326.
10. Hong SJ, Eun SH, Jung JS, et al. Longterm effect after Helicobacter pylori eradication in patients with peptic ulcer disease: A retrospective study. Korean J Med. 2002; 63:23–28.
11. Graham DY, Agrawal NM, Roth SH. Prevention of NSAID-induced gastric ulcer with misoprostol: multicentre, double-blind, placebo-controlled trial. Lancet. 1988; 2:12771280.
12. Bombardier C, Laine L, Reicin A, et al. Comparison of upper gastrointestinal toxicity of rofecoxib and naproxen in patients with rheumatoid arthritis. VIGOR study Group. N Engl J Med. 2000; 343:1520–1528.
13. Wolfe MM, Lichtenstein DR, Singh G. Gastrointestinal toxicity of nonsteroidal antiinflammatory drugs. N Engl J Med. 1999; 340:1888–1899.
14. Cryer B, Feldman M. Effects of very low dose daily, longterm aspirin therapy on gastric, duodenal, and rectal prostaglandin levels and on mucosal injury in healthy humans. Gastroenterology. 1999; 117:17–25.
15. Hawkey CJ, Karrasch JA, Szczepañski L, et al. Omeprazole compared with misoprostol for ulcers associated with non-steroidal antiinflammatory drugs. Omeprazole versus Misoprostol for NSAID-induced Ulcer Management (OMNIUM) Study Group. N Engl J Med. 1998; 338:727–734.