Editor—Dubben and Beck-Bornholdt conclude that studies of publication bias are not themselves subject to publication bias.1
This statement is premature. Surely we need a systematic review of systematic reviews of publication bias in studies of publication bias. Any takers?
Competing interests: None declared.
References
- 1.Dubben HH, Beck-Bornholdt HP. Systematic review of publication bias in studies on publication bias. BMJ 2005;331: 433-4. (20-27 August.) [DOI] [PMC free article] [PubMed] [Google Scholar]