More than 20 years after publishing a letter saying a set of papers should be retracted — and PubMed marking them as such — the journal has finally retracted the articles, following a Retraction Watch inquiry.
Let’s back up.
In 1998, the journal Contraception published a supplement with six articles on Implanon, a subdermal contraceptive implant. The papers examined the implant’s pharmacodynamics and side effects. The next year, the journal published two clinical studies of the implant, one on its effectiveness as a contraceptive and the other on its effect on lipid metabolism.
Those two studies took place at centers in Jakarta, Indonesia. Some of the study data published in the supplement also included patients at those centers.
Continue reading When PubMed got it right, Elsevier got it wrong, and Retraction Watch helped clear it up