THIS issue of the Journal of Head Trauma Rehabilitation has several novel components that we want to bring to your attention.

First, you will notice that the issue contains 2 topical sections. Although we have previously published topical sections (as opposed to an entire topical issue), it is new to have 2 in the same issue. You will find articles based on 2 of the plenary talks given at the 3rd Federal Interagency Conference on TBI-one by Daniel Perl, MD, from the Uniformed Services University of the Health Sciences and the other by Jennie Ponsford, PhD, from Monash University in Melbourne, Australia. Tamara Bushnik and Wayne Gordon, who co-chaired the conference, introduce the section with a recap and analysis of emerging issues.

The second topical section introduces 2 additional novel features for JHTR. "TBI in Offender Populations" contains 3 articles, 2 from Elisabeth Pickelsimer's group at the Medical University of South Carolina, and a third from Huw Williams and colleagues at the University of Exeter in the United Kingdom. The prevalence of traumatic brain injury (TBI) among both youth and adult offenders underscores the importance of this topical section. Indeed, the first article is a meta-analysis of prevalence studies that first appeared in the Journal of Correctional Health Care. This is the first time that JHTR has published a reprint, but the careful methodology and striking findings convinced us that this manuscript deserved additional dissemination to the brain injury community.

The topical section on TBI in Offender Populations is also unique because it is our first "ePublication only." These articles are shown in the table of contents and their abstracts are included in the print version of JHTR, but the full manuscripts will only be found on the JHTR Web site, http://journals.lww.com/headtraumarehab. Everything else about these manuscripts is exactly the same as all articles published in JHTR, including their having undergone peer review, capture in Index Medicus and other search engines, inclusion in citation statistics, as well as the look of the PDF versions that can be distributed electronically. We will be interested in authors' and readers' reactions to ePublication-the benefit is that articles get to the field faster and the pages only count as a fraction toward our annual allocation, thus increasing the total number of articles we can publish.

And finally, the icing on the cake is the issue's diverse collection of unsolicited articles. On behalf of all the Editors, we hope you enjoy this unique issue of JHTR.

-John D. Corrigan, PhD, ABPP

Editor-in-Chief