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Study Links Air Pollution, Blood Clots In Veins

Air pollution heavy in small particles may cause blood clots in the legs, the same condition air travellers call "economy class syndrome" from immobility during flight, researchers said on Monday. Dr. Andrea Baccarelli of the Harvard School of Public Health in Boston and colleagues said they found the link after looking at 870 people in Italy who had developed deep vein thrombosis between 1995 and 2005.