Paper on hydroxychloroquine led by French researcher Didier Raoult is second-most-cited study ever to be withdrawn.
Given the amount of discussion of this paper on this forum over the years, I thought it worth noting that it has (finally) been retracted.
This paper should never have been published — or it should have been retracted immediately after its publication – Elisabeth Bik (image-forensics specialist and scientific-integrity consultant)
Raoult and his work on HCQ as a treatment for COVID-19 have been the subject of several threads here, so it’s worth noting that the paper which claimed HCQ’s efficacy had been demonstrated in a clinical trial has, after much criticism over the intervening years, finally been retracted as a result of issues with procedure and medical ethics concerns.