| Database: Ovid MEDLINE(R) <1996 to November Week 3 2005> | |
| Search Strategy: | |
| 1 | Gastroesophageal reflux/or “gerd”.mp. (7177) |
| 2 | exp peptic ulcer/or “peptic ulcer”.mp. (11820) |
| 3 | 1 or 2 (18234) |
| 4 | Proton pump/ai (2118) |
| 5 | proton pump inhibitor$.mp. (2872) |
| 6 | (pantoprazole or lansoprazole or esomeprazole or omeprazole or rabeprazole).mp. (4884) |
| 7 | 4 or 5 or 6 (6850) |
| 8 | 3 and 7 (3592) |
| 9 | limit 8 to (humans and english language) (2806) |
| 10 | limit 9 to (clinical trial or clinical trial, phase i or clinical trial, phase ii or clinical trial, phase iii or clinical trial, phase iv or controlled clinical trial or meta analysis or multicenter study or practice guideline or randomized controlled trial) (947) |
| 11 | exp clinical trials/or clinical trial$.mp. (115736) |
| 12 | exp epidemiologic research design/(288078) |
| 13 | observational stud$.mp. (9134) |
| 14 | 11 or 12 or 13 (394813) |
| 15 | 9 and 14 (784) |
| 16 | 10 or 15 (1303) |
| 17 | limit 16 to yr=”2005 – 2006” (107) |
| 18 | from 17 keep 1–107 (107) |
From: Appendix B. Search strategies
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