BACKGROUND
A 42-year-old woman became breathless during her usual daily 3-mile jog. She has no other symptoms and had no environmental exposure.
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Hint
In approximately 60% of patients, spontaneous remission occurs.
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Author:
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Sat Sharma, MD
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Associate Professor, University of Manitoba, Department of Medicine, Division of Pulmonary Medicine
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eMedicine Editor:
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Morley Lertzman, MD
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University of Manitoba
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