Correction

Medical Sciences. For the article “An autologous oral DNA vaccine protects against murine melanoma” by Rong Xiang, Holger N. Lode, Ta-Hsiang Chao, J. Michael Ruehlmann, Carrie S. Dolman, Fernando Rodriguez, J. Lindsay Whitton, Willem W. Overwijk, Nicholas P. Restifo, and Ralph A. Reisfeld, which appeared in number 10, May 9, 2000, of Proc. Natl. Acad. Sci. USA (97, 5492–5497), the authors note the following corrections. In the last paragraph on page 5494, the phrase, “An even better tumor-protective immunity (P < 0.05) was achieved . . .” should read, “At least equal tumor-protective immunity (P < 0.05) was achieved. . . .” Also, in line 13 of the second paragraph on page 5496, the phrase, “Interestingly, the extent of this tumor-protective immunity was better (P value was <0.05) than that achieved by xenoimmunization . . . ” should read, “Interestingly, the extent of this tumor-protective immunity was at least equal (P value was <0.05) to that achieved by xenoimmunization. . . .”