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Table 7 Sources of 11 published full-text articles on 12 RCTs: databases and trial registers

From: Negative pressure wound therapy: Potential publication bias caused by lack of access to unpublished study results data

No Full-text articles Bibliographic databases Trial registers
   MEDLINE EMBASE Cochrane Clinical Trials CINAHL CT.gov NRR
1 Braakenburg 2006 [21] + + + - - -
2 Stannard 2006 [80]* + + + - - -
3 Vuerstaek 2006 [23] + - + - + -
4 Llanos 2006 [25] + + + - - -
5 Armstrong 2005 [22] + + + + + -
6 Moisidis 2004 [18] + + + - - -
7 Moues 2004 [20] + + + + - -
8 Eginton 2003 [17] + + + - - -
9 Wanner 2003 [24] + + + - - -
10 Ford 2002 [30] + + + - - -
11 Joseph 2000 [19] - - + + - -
   10 9 11 3 2 0
  1. * Stannard 2006 [80]: one article presenting preliminary results of 2 ongoing RCTs [40,41].
  2. CT.gov: ClinicalTrials.gov (United States); NRR: National Research Register (United Kingdom National Health System); RCT: randomised controlled trial