The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Retraction—Hydroxychloroquine or chloroquine with or without a macrolide for treatment of COVID-19: a multinational registry analysis
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“In the era of COVID, The Lancet journal has retracted a study about the use of hydroxychloroquine in COVID, using the ‘Surgisphere’ data source, and the following analysis could not be validated.36”
From Artificial Intelligence in Detecting Statistical Errors: Implications for Authors, Reviewers, and Editors (2025) · cites this paper as [36]
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“One of them, published in a top biology journal, reported that treatment with chloroquine had no benefit in COVID-19 patients based on data that were likely fabricated (18).”
From Dynamics of cross-platform attention to retracted papers (2022) · cites this paper as [18]
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1 retracted
Mehra, M. R., Desai, S. S., Ruschitzka, F. T., & Patel, A. N. (2020) · The Lancet · doi:10.1016/s0140-6736(20)31180-6 · Cited by 1,201
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Metadata
- Authors
- Mehra, M. R., Ruschitzka, F., & Patel, A. N.
- Affiliations
- Brigham and Women's Hospital (US)
- University Hospital Zurich (CH)
- University of Utah (US)
- Corresponding author
- Mehra, Mandeep R
- Venue
- The Lancet
- Publisher
- Elsevier BV
- Published
- 2020-06
- Volume
- 395
- Issue
- 10240
- Pages
- 1820
- ISSN
- 0099-5355 (ISSN-L)
- 0140-6736
- PMC
- PMC7274621
- OpenAlex
- W3035365037
- Cited by
- 553
- References
- 1
- Citations by year
- 2026: 3 · 2025: 12 · 2024: 19 · 2023: 22 · 2022: 64 · 2021: 161 · 2020: 272
- Type
- retraction
- Language
- en
- Status
- Retracted
- Update notices
- retraction (2020-05-22)
- Open access
- bronze
- doi.org
- Locations
- The Lancet (publishedVersion)
- Funders
- Roche
- Topics
- Health Sciences › Medicine › Infectious Diseases › COVID-19 Clinical Research Studies
- Social Sciences › Library and Information Sciences › Academic Publishing and Open Access
- Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
- Keywords
- COVID-19 pandemic, hydroxychloroquine, chloroquine, macrolides, data veracity, research ethics, conflict of interest disclosure, research misconduct allegations
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.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
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