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المؤلفون: Michael P. Bancks (10065295), Haiying Chen (9771), Ashok Balasubramanyam (2855465), Alain G. Bertoni (10065298), Mark A. Espeland (9514396), Steven Kahn (3507989), Scott Pilla (10065300), Elizabeth Vaughan (10065303), Lynne E. Wagenknecht (8825033), the Look AHEAD Research Group (9580665)