Error in References. In the article titled "Pollutants in Breast Milk," published in the September Archives (1996;150:981-990), reference 9 should have read as follows: "Kelce WR, Stone CR, Laws SC, Gray LE, Kemppainen JA, Wilson EM. Persistent DDE metabolite p,p′-DDE is a potent androgen receptor antagonist. Nature. 1995;375:581-585." This reference refers to the citation on page 982, left column, first paragraph. The current reference 9 is cited correctly elsewhere in the article.