Erratum
In the report "YIGSR, a synthetic laminin pentapeptide, inhibits experimental metastasis formation" by Y. Iwamoto et al. (20 Nov., p. 1132), the affiliation of authors Y. Iwamoto, J. Graf, M. Sasaki, H. K. Kleinman, Y. Yamada, and G. R. Martin was incorrectly given. These authors are at the Laboratory of Developmental Biology and Anomalies, National Institute of Dental Research, National Institutes of Health, Bethesda, MD 20892.