Erratum to: Calcif Tissue Int DOI 10.1007/s00223-013-9766-y

We regret to inform readers that in error, the article by Panaroni and Wu which is referred to in this editorial was already published in the September 2013 issue of Calcified Tissue International and Musculoskeletal Research (Panaroni C and Wu JY. Interactions between B lymphocytes and the osteoblast lineage in bone marrow, Volume 93, issue 3, page numbers 261–268). As a result, this article does not appear in this special issue as intended, but is however listed in the Table of contents.