1. van Tulder MW, Scholten RJ, Koes BW, Deyo RA. Nonsteroidal antiinflammatory drugs for low back pain: a systematic review within the framework of The Cochrane Collaboration Back Review Group. Spine (Phila Pa 1976). 2000; 25:2501–13.
2. Chung JY, Lee JJ, Seo HY, Shon SJ, Chung EK. Effect of Tramadol/Acetaminophen Combination Drug in Acute Pain After Spinal Surgery. J Korean Soc Spine Surg. 2007; 14:137–43.
Article
3. Garcia Rodriguez LA, Jick H. Risk of upper gastrointestinal bleeding and perforation associated with individual non-steroidal antiinflammatory drugs. Lancet. 1994; 343:769–72.
4. Laine L. GI risk and risk factors of NSAIDs. J Cardiovasc Pharmacol. 2006; 47(1 Suppl):60–6.
Article
5. Singh G. Arthritis, Rheumatism and Aging Medical Information System Post-Marketing Surveillance Program. J Rheumatol. 2001; 28:1174–9.
6. Schlansky B, Hwang JH. Prevention of nonsteroidal antiinflammatory drug-induced gastropathy. J Gastroenterol. 2009; 44(19 Suppl):44–52.
Article
7. Fries JF, Williams CA, Bloch DA, Michel BA. Nonsteroidal antiinflammatory drug-associated gastropathy: incidence and risk factor models. Am J Med. 1991; 91:213–22.
Article
8. Fries JF, Murtagh KN, Bennett M, Zatarain E, Lingala B, Bruce B. The rise and decline of nonsteroidal antiinflammatory drug-associated gastropathy in rheumatoid arthritis. Arthritis Rheum. 2004; 50:2433–40.
Article
9. Tramè r MR, Moore RA, Reynolds DJ, McQuay HJ. Quantitative estimation of rare adverse events which follow a biological progression: a new model applied to chronic NSAID use. Pain. 2000; 85:169–82.
10. Herná ndez-Dí az S, Rodrí guez LA. Association between nonsteroidal antiinflammatory drugs and upper gastrointestinal tract bleeding/perforation: an overview of epidemiologic studies published in the 1990s. Arch Intern Med. 2000; 160:2093–9.
11. Bull SA, Conell C, Campen DH. Relationship of clinical factors to the use of Cox-2 selective NSAIDs within an arthritis population in a large HMO. J Manag Care Pharm. 2002; 8:252–8.
Article
12. Lazzaroni M, Bianchi Porro G. Non-steroidal antiinflammatory drug gastropathy: clinical results with H2 antagonists and proton pump inhibitors. Ital J Gastroenterol Hepatol. 1999; 31(1 Suppl):S73–8.
13. Daniel WW. Biostatistics: A foundation for analysis in the health science. 7thed.New York: John Wiley & Sons;1999.
14. Wolfe MM, Lichtenstein DR, Singh G. Gastrointestinal toxicity of nonsteroidal antiinflammatory drugs. N Engl J Med. 1999; 340:1888–99.
Article
15. Lapane KL, Spooner JJ, Pettitt D. The effect of nonsteroidal antiinflammatory drugs on the use of gastroprotective medication in people with arthritis. Am J Manag Care. 2001; 7:402–8.
16. Griffin MR. Epidemiology of nonsteroidal antiinflammatory drug-associated gastrointestinal injury. Am J Med. 1998; 30:23–9.
Article
17. Logan R, Delaney B. ABC of the upper gastrointestinal tract: implications of dyspepsia for the NHS. BMJ. 2001; 323:675–7.
Article
18. Lee SH, Han CD, Yang IH, Ha CW. Prescription Pattern of NSAIDs and the Prevalence of NSAID-induced Gastrointestinal Risk Factors of Orthopaedic Patients in Clinical Practice in Korea. J Korean Med Sci. 2011; 26:561–7.
Article
19. Helsper CW, Smeets HM, Numans ME, et al. Trends and determinants of adequate gastroprotection in patients chronically using NSAIDs. Pharmacoepidemiology and drug safety. 2009; 18:800–6.
Article
20. Chancellor JV, Hunsche E, de Cruz E, Sarasin FP. Economic evaluation of celecoxib, a new cyclo-oxygenase 2 specific inhibitor, in Switzerland. PharmacoEconomics. 2001; 19(1 Suppl):59–75.
Article
21. Burke TA, Zabinski RA, Pettitt D, Maniadakis N, Maurath CJ, Goldstein JL. A framework for evaluating the clinical consequences of initial therapy with NSAIDs, NSAIDs plus gastroprotective agents, or celecoxib in the treatment of arthritis. PharmacoEconomics. 2001; 19(1 Suppl):33–47.
Article
22. Langman MJ, Jensen DM, Watson DJ, et al. Adverse upper gastrointestinal effects of rofecoxib compared with NSAIDs. JAMA. 1999; 282:1929–33.
Article
23. Silverstein FE, Graham DY, Senior JR, et al. Misoprostol reduces serious gastrointestinal complications in patients with rheumatoid arthritis receiving nonsteroidal antiinflammatory drugs. A randomized, double-blind, placebo-controlled trial. Ann Intern Med. 1995; 123:241–9.