Am Fam Physician. 2004;69(6):1362
The article “Management of Gestational Diabetes Mellitus” (November 1, 2003, page 1767) contained an error in the values of whole blood glucose. On page 1768, in the third paragraph, the last sentence should have stated “Whole blood glucose values are approximately 10 to 15 percent lower than serum or plasma values.” The online version of this article has been corrected.