John Stossel posted online that he was being treated for lung cancer.
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Stossel is currently an anchor on FOX News and FOX Business. He previously appeared on ABC News' 20/20.
He wrote that a fifth of his lung was removed in surgery at New York-Presbyterian Hospital.
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He says he is receiving excellent medical care, but adds that quote, "the hospital's customer service stinks."
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Stossel's late ABC News colleague and 'World News Tonight' anchor Peter Jennings died of lung cancer at the age of 67 in 2005.
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