Evidence map›Paper›PMID 32511943›Full record

ArticleLancet (London, England)2020

Retraction-Hydroxychloroquine or chloroquine with or without a macrolide for treatment of COVID-19: a multinational registry analysis.

Mandeep R Mehra, Frank Ruschitzka, Amit N Patel

Abstract readRetraction Notice
PubMed Full text at PMC Publisher
In one paragraph

Article in Lancet (London, England), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 277 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
277citing papers in PubMed, 8 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

277 citing papers in PubMed, 8 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Chloroquine or hydroxychloroquine for prevention and treatment of COVID-19.The Cochrane database of systematic reviews · 2021
    Pooled it
  6. Pooled it
  7. Pooled it
  8. Pooled it
  9. Trial
  10. Article
  11. Review
  12. Article
  13. Article
  14. Misconduct in science and medicine.EFORT open reviews · 2025
    Review
  15. The Need for Prospective Integrity Standards for the Use of Generative AI in Research.The Journal of law, medicine & ethics : a journal of the American Society of Law, Medicine & Ethics · 2025
    Article
  16. Article
  17. Historiography of Scientific Publishing across Cultures and Disciplines.The Indian journal of radiology & imaging · 2025
    Article
  18. Review
  19. Review
  20. Article

217 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Mandeep R MehraBrigham and Women's Hospital Heart and Vascular Center and Harvard Medical School, Boston, MA 02115, USA. Electronic address: mmehra@bwh.harvard.edu.
Frank RuschitzkaUniversity Heart Center, University Hospital Zurich, Zurich, Switzerland.
Amit N PatelDepartment of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA; HCA Research Institute, Nashville, TN, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Identifiers

PMID32511943
PMCPMC7274621

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.