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Previous Volume 336:510-513 February 13, 1997 Number 7 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: The recent report by Abenhaim et al. for the International Primary Pulmonary Hypertension Study Group (Aug. 29 issue)¹ has received considerable attention in the media. Patients were excluded who had pulmonary hypertension due to many causes, but not obstructive sleep apnea. Since there were approximately twice as many case patients as controls who had body-mass indexes (the weight in kilograms divided by the square of the height in meters) of 30 or higher (35.8 percent vs. 18.3 percent), one would expect the incidence of pulmonary hypertension due to obstructive sleep apnea to be higher in the case . . . [Full Text of this Article]

References

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