"They went to the press. They insinuated I was not practicing medicine; I was practicing voodoo."

Who Is Bennet Omalu? The 'Concussion' Doctor Brought Much Needed Attention To A Controversial Issue

After Omalu published his findings, the NFL sent a letter to one of his colleagues accusing him of fraud. Omalu told Frontline in 2013: "They went to the press. They insinuated I was not practicing medicine; I was practicing voodoo."