The BBC has contacted Rihanna's representatives for comment.
The r/science community is being notified about a research paper that was previously shared on the subreddit and has now been withdrawn by the publishing journal. This post received extensive visibility on r/science and was widely reported in the media. In accordance with our guidelines, the post has been marked with a "RETRACTED" label. It has also been included in our archive of withdrawn studies.
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$$A more conventional representation is: