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Table 1 Search strategy for the MEDLINE electronic database using the Ovid interface

From: Protocol for a systematic review, meta-analysis, and trial sequential analysis of clinical outcomes following accelerated versus conventional corneal collagen cross-linking for corneal ectasia

Database

Search terms

MEDLINE 1946–present

1 Cross-Linking Reagents/

2 CORNEA/

3 cornea*.mp.

4 1 and (2 or 3)

5 ((crosslink* or cross link* or xlink* or x link*) adj3 (cornea* or collagen)).mp.

6 CCL.mp.

7 CXL.mp.

8 C3R.mp.

9 or/4–8

10 Dilatation, Pathologic/

11 ectasia*.mp.

12 corneal diseases/

13 cornea*.mp.

14 exp. Corneal Dystrophies, Hereditary/

15 pellucid marginal degeneration.mp.

16 (fuch* adj2 atroph*).mp.

17 ((fuch* or groenouw*) adj2 dystroph*).mp.

18 KERATOCONUS/

19 keratoconus.mp.

20 Corneal Endothelial Cell Loss/

21 Corneal Wavefront Aberration/

22 keratopath*.mp.

23 or/10–22

24 9 and 23

25 “Transendothelial and Transepithelial Migration”/

26 trans-epitheli*.mp.

27 transepitheli*.mp.

28 epitheli*.mp.

29 (dresden or phototherapeutic or photo-therapeutic or iontophoresis or tight junctions).mp.

30 or/25–29

31 24 and 30

32 remove duplicates from 31

33 (accelerat* or nonaccelerat* or conventional or regular or rapid or flash-linking or KXL).mp.

34 24 and 33

35 remove duplicates from 34