Correction

CELL BIOLOGY. For the article “Mannose-6-phosphate/insulin-like growth factor-II receptor is a receptor for retinoic acid,” by Jing X. Kang, Yunyuan Li, and Alexander Leaf, which appeared in number 25, December 9, 1997, of Proc. Natl. Acad. Sci. USA (94, 13671–13676), the headers should read “Vol. 94, pp. 13671–13676, December 1997” on page 13671 and “Proc. Natl. Acad. Sci. USA 94 (1997)” on pages 13672–13676. The copyright statement on page 13671 should read “© 1997 by The National Academy of Sciences 0027-8424/97/9413671-6$2.00/0.”