Cowboys' All-Pro center Travis Frederick retires at 29 after nerve disorder, Dallas Cowboys
Dallas Cowboys' Travis Frederick is battling rare auto-immune disease, NFL
Dallas Cowboys' Travis Frederick Retires At 29 - The Runner Sports
The Olympics Issue - The New York Times
Dallas Cowboys: Travis Frederick has immune system disorder
Dallas Cowboys: Travis Frederick sees hope, progress after diagnosis
ULM Game Program by Liberty University - Issuu
Ex-Olympic swimmer has hopeful message for Cowboys' Travis Frederick, who is battling rare disease
TV Pilots 2016: The Complete Guide – The Hollywood Reporter