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Table 1 Example of search string - Ovid SP Medline

From: Defining the gap: a systematic review of the difference in rates of diabetes-related foot complications in Aboriginal and Torres Strait Islander Australians and non-Indigenous Australians

1. Aborig*
2. Indigenous
3. 1 or 2
4. Australia*
5. 3 and 4
6. Lower limb
7. Foot
8. Leg
9. Ankle
10. Ulcer
11. Neuro*
12. Amputat*
13. Vascular
14. Peripheral arterial disease
15. Ischaemi*
16. 6–15/or
17. 5 and 16
  1. The asterisk (*) truncation symbol was used as a substitute for any string of zero or more characters in a search term. For example, the search diabet* would include diabetes, diabetic etc.