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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 National Football League Players Association 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.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Funding"}},{"value":"Ross Zafonte reported receiving royalties from Springer\/Demos Publishing for serving as the coeditor of the text <i>Brain Injury Medicine<\/i>; serving on the scientific advisory board of Myomo Inc. and <u>onecare.ai<\/u> Inc.; evaluating patients in the Massachusetts General Hospital Brain and Body-TRUST Program, which is funded by the National Football League Players Association; and receiving grants from the National Institutes of Health. Aaron Baggish has received funding from the National Institutes of Health\/National Heart, Lung, and Blood Institute, the National Football Players Association, and the American Heart Association and receives compensation for his role as team cardiologist from the US Olympic Committee\/US Olympic Training Centers, US Soccer, US Rowing, the New England Patriots, the Boston Bruins, the New England Revolution, and Harvard University. Marc G. Weisskopf reported receiving grants from the National Football League Players Association and the National Institutes of Health during the conduct of the study.\u00a0Douglas P. Terry serves on the Scientific Advisory Board for HitIQ and previously consulted for REACT Neuro, Inc. Rachel Grashow and Heather DiGregorio received grant funding from the National Football League Players Association. Shawn R. Eagle has not conflicts of interest to disclose. David Okonkwo is the team neurosurgeon for the Pittsburgh Steelers football club.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"This study was approved by the Institutional Review Board of the Harvard T.H. Chan School of Public Health.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval"}},{"value":"Informed consent was provided by each participant.","order":5,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent to participate"}},{"value":"Participants provided consent to publish study data.","order":6,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for Publication"}},{"value":"Data may be available upon reasonable request to the Football Players\u2019 Health Study.","order":7,"name":"Ethics","group":{"name":"EthicsHeading","label":"Availability of data and material"}},{"value":"Not applicable.","order":8,"name":"Ethics","group":{"name":"EthicsHeading","label":"Code availability"}},{"value":"SE and RG conceived of the study, conducted the statistical analyses, wrote the initial draft, revised the draft based upon feedback from collaborators, and submitted and approved the final draft. HD and DT contributed to the writing of the initial draft, critical revising of the draft, and approval of the final draft. AB, MW, and RZ contributed to the study design, critical review, and revising of the manuscript and approval of the final version. RZ also obtained the necessary study funding. DO contributed to the critical review, revision, and final approval of the manuscript.","order":9,"name":"Ethics","group":{"name":"EthicsHeading","label":"Author contributions"}}]}}