Race differences in pain and pain-related risk factors among former professional American-style football players.

"Sponsorships or competing interests that may be relevant to content are disclosed at the end of this article."

"This work was supported by the Football Players Health Study at Harvard University, which is funded by the National Football League Players Association (NFLPA). In addition, support for RRE was provided by the National Institute of Neurological Disorders and Stroke under award K24NS126570. The content is solely the responsibility of the authors and does not necessarily represent the official views of Harvard Medical School, Harvard University, and its affiliated academic healthcare centers. The NFLPA had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and the decision to submit the manuscript for publication."