49ers legend Dwight Clark says he has ALS, suspects football a
49ers' Dwight Clark tragedy: Can football cause ALS? – Santa Cruz
Legendary 49ers wide receiver Dwight Clark dies at 61
Football greats Dwight Clark, Gale Sayers battle brain diseases
San Francisco 49ers legend Dwight Clark reveals he has ALS
Dwight Clark Says He Has ALS, Suspects Football A Cause - CBS Detroit
Kinston native, former 49er, Dwight Clark dies
49ers legend Dwight Clark announces ALS diagnosis
The NFL and ALS: Before Dwight Clark, three 49ers were victims
Lowell Cohn: Illness robbed us of Dwight Clark, but not of his spirit
49ers legend Dwight Clark dies at age 61 after battle with ALS
The NFL and ALS: Before Dwight Clark, three 49ers were victims
Dwight Clark, former San Francisco 49ers receiver known for 'The
San Francisco 49ers legend Dwight Clark diagnosed with ALS - ESPN
49ers legend Dwight Clark announces ALS diagnosis