A researcher in Spain who studies dental implants has had another six papers retracted, for a total of 18.
José Luis Calvo-Guirado‘s latest retraction, which along with the other 17 appeared in Clinical Oral Implants Research, a Wiley title, was for “image discrepancies resulting in unreliable data.” Three appeared in June, and two in July, also for image issues. The researcher also has at least two corrections; one in Annals of Anatomy — Anatomischer Anzeiger and one in Materials.
With the exception of one paper — “New bone formation in bone defects after melatonin and porcine bone grafts: experimental study in rabbits” — that has been cited a dozen times, according to Clarivate Analytics’ Web of Science, none has been cited more than a few times.
Calvo-Guirado, of Universidad Católica San Antonio de Murcia (UCAM), told Retraction Watch that he still feels that all of the retractions are unjustified. “All in the same journal,” he said, which he called “incredible,” saying that he had “nothing to do with it.”
The editor in chief of the journal, Lisa Heitz-Mayfield, did not respond to a request for comment.
When we reported on Calvo-Guirado’s first dozen retractions in May, one of his co-authors, Georgios Romanos, an associate dean at the State University of New York Stony Brook School of Dental Medicine, told us that while the misrepresentations in the papers were unethical, he thought that Calvo-Guirado was using images more than once in an attempt to limit the number of lab animals that would need to be killed.
Hat tip: Rolf Degen
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