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*{{pmid18032770}}
*<b>[http://www.kidney.de/mlpefetch.php?search=18032770 Statistics in medicine--reporting of subgroup analyses in clinical trials ]</b> N Engl J Med 2007; 357(21) ; 2189-94 Wang R; Lagakos SW; Ware JH; Hunter DJ; Drazen JM
*18032770*