On June 10, Psycho-Oncology, a journal that publishes research on the “psychological, social, behavioral, and ethical” side of cancer, received a complaint.
In a letter, Ad Kaptein, a researcher at the Leiden University Medical Centre, in the Netherlands, wrote to say that a review and meta-analysis published by the journal that month hadn’t adequately cited the relevant literature in the field, including seven studies co-authored by Kaptein himself. The authors of the original paper say they had considered citing Kaptein’s work but decided against it, for various reasons.
The journal considered Kaptein’s complaint valid enough to publish his letter. But the letter carries the title “Expression of concern” — a term usually reserved for editorial notices issued by the journal to warn readers about some aspects of an article. But in this case, the author supplied the term, not the journal — yet the letter is tagged as an Expression of Concern on PubMed, giving the impression the paper has received a formal editorial notice.
Journal Co-Editor Maggie Watson told Retraction Watch:

Two journals have retracted papers by a biologist who was 
Earlier this year, a raging controversy regarding a new drug spilled into the pages of a leading medical journal: the head of the U.S. Food and Drug Administration and another official publicly 
Different journals follow different editorial policies — but we’ve never seen any charge money to authors who want to appeal an editorial decision. Until now.
Journals have posted two corrections alongside papers by 
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