Cause unknown: the burden of diagnosis
Around three weeks ago, my 72-year-old patient, Mr. J., woke up feeling severely short of breath. He felt unusually tired, noticed a dry cough, and felt achy in his arms and legs. Suspicious of COVID-19, he and his wife called an ambulance and went to the nearest New York City emergency room.
At first, the doctors too thought it was COVID-19. However, a chest X-ray, CT scan, and a series of …









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