A man had heart attack symptoms on a flight. A cardiologist and a pocket-sized tool on board may have helped save his life
By Taylor Galgano, CNN (CNN) — Oklahoma cardiologist Dr. TJ Trad was fast asleep on his flight from Uganda last month when a member of his team woke him up to say someone needed a doctor. Trad rushed over to the passenger who needed help to find a man drenched with sweat and complaining of
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