As every doctor knows, requests for medical advice don't end when a doctor leaves the office for the day. They are made in parking lots and supermarkets, on buses and planes, at weddings and funerals.
"I'm a doctor 24/7," says Sandra Adamson Fryhofer, an internist in Atlanta, Georgia. "When you're a doctor, you're never off-duty." Dr Fryhofer isn't exaggerating.
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