Editorial Expression of Concern: Clin Rheumatol (2016) 35:205-212

https://doi.org/10.1007/s10067-014-2812-y

Following receipt of a concern from a reader about this article [1], the Editor-in-Chief is issuing an editorial expression of concern to highlight the large overlap between this article and another article by the same author group [2]. Whilst there is a high percentage of overlap, the Editor-in-Chief considers this article to be sufficiently novel to warrant its inclusion in the scientific record. Jun Iwamoto has not responded to correspondence from the Editor-in-Chief or publisher. The Editor-in-Chief and the publisher were not able to obtain a current email addresses for Mitsuyoshi Uzawa.