The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.
Do Certain Countries Produce Only Positive Results? A Systematic Review of Controlled Trials
Overview
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Citations
Cites
Operating characteristics of a rank correlation test for publication bias
Begg, C. B., & Mazumdar, M. (1994) · Biometrics · doi:10.2307/2533446 · Cited by 16,955
Schulz (1995) · doi:10.1001/jama.1995.03520290060030 · Cited by 5,634
Publication bias in clinical research
Easterbrook, P. J., Gopalan, R., Berlin, J. A., & Matthews, D. R. (1991) · The Lancet · doi:10.1016/0140-6736(91)90201-y · Cited by 3,109 · cited 2×
“Our figure from the second study of 75% of English trials favoring the test treatment is identical to that reported [6] for trials published in the Lancet and similar to that reported by Easterbrook [7] for research conducted in Oxford in the mid-1980s.”
ResultThe Existence of Publication Bias and Risk Factors for Its Occurrence
Dickersin, K. (1990) · JAMA: The Journal of the American Medical Association · doi:10.1001/jama.1990.03440100097014 · Cited by 1,417
Meta-Analysis in Clinical Research
L'ABBÉ, K. A., DETSKY, A. S., & O'ROURKE, K. (1987) · Annals of Internal Medicine · doi:10.7326/0003-4819-107-2-224 · Cited by 1,267
Cited by
Moher, D., Cook, D. J., Eastwood, S., Olkin, I., Rennie, D., & Stroup, D. F. (1999) · The Lancet · doi:10.1016/s0140-6736(99)04149-5 · Cited by 4,826
Moher, D., Schulz, K. F., & Altman, D. G. (2001) · BMC Medical Research Methodology · doi:10.1186/1471-2288-1-2 · Cited by 2,755
Publication bias in meta-analysis its causes and consequences
Thornton, A. (2000) · Journal of Clinical Epidemiology · doi:10.1016/s0895-4356(99)00161-4 · Cited by 1,291
Egger, M., Jüni, P., Bartlett, C., Holenstein, F., & Sterne, J. (2003) · Health Technology Assessment · doi:10.3310/hta7010 · Cited by 1,181
Direction and impact of language bias in meta-analyses of controlled trials: empirical study
Jüni, P., Holenstein, F., Sterne, J., Bartlett, C., & Egger, M. (2002) · International Journal of Epidemiology · doi:10.1093/ije/31.1.115 · Cited by 892
Metadata
- Authors
- Vickers, A., Goyal, N., Harland, R., & Rees, R.
- Venue
- Controlled Clinical Trials
- Publisher
- Elsevier BV
- Published
- 1998-04
- Volume
- 19
- Issue
- 2
- Pages
- 159-166
- ISSN
- 0197-2456 (ISSN-L)
- OpenAlex
- W2093541354
- Cited by
- 683
- References
- 5
- FWCI
- 5.49
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
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How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Do Certain Countries Produce Only Positive Results? A Systematic Review of Controlled Trials. https://app.cochat.ai/papers/10.1016/s0197-2456(97)00150-5
- The paper
- Vickers, A., Goyal, N., Harland, R., & Rees, R. (1998). Do Certain Countries Produce Only Positive Results? A Systematic Review of Controlled Trials. Controlled Clinical Trials. https://doi.org/10.1016/s0197-2456(97)00150-5
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
