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Previous Volume 346:138-139 January 10, 2002 Number 2 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: Dr. Lapostolle and colleagues (Sept. 13 issue)¹ offer the best descriptions to date of the epidemiology of pulmonary embolism associated with air travel and of flight distance as a risk factor. There is a problem, however, with the data presented in Table 1 that are used to stratify flight distance.

The distance between the East Coast and the West Coast of the United States is approximately 3000 mi, or just under 5000 km. The United States is listed in the first column of Table 1, "Country or Area of Origin of Flight," only for the flight distance . . . [Full Text of this Article]

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