League of denial : the NFL's concussion crisis

Responsibility
a Frontline production with Kirk Documentary Group, Ltd. ; WGBH.
Language
English. Optional English subtitles for the deaf and hard of hearing.
Sound
digital; optical.
Digital
video file; DVD video.
Publication
[Boston, Massachusetts] : WGBH Educational Foundation, 2013.
Distribution
[Boston, Massachusetts] : PBS Distribution
Copyright notice
©2013
Physical description
1 videodisc (116 min.) : sound, color with black & white sequences ; 4 3/4 in.

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