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Stuart Stevens’s November story “Drug Test,” on the use of performance-enhancing substances in sports, incorrectly reported that cyclist Alexi Grewal, who won a road-racing gold medal at the 1984 Olympic Games in Los Angeles, prepared for that year’s competition with the use of blood packing, a transfusion technique that increases the number of oxygen-carrying red blood cells in the body. While the U.S. Cycling Federation determined that seven members of the U.S. cycling team did practice blood packing at the L.A. Games (the method was then legal under Olympic rules) there was no evidence that Grewal participated. Outside regrets the error.

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