Erratum for vol. 100, p. 3435

In the letter by Alvarez et al entitled “Cytogenetic characterization reveals that the SAM-1 erythroid cell line is derived from K-562 cells,” which appeared in the November 1, 2002, issue ofBlood (Volume 100:3435), the cell line previously reported to be a derivative of K562 should have been TI-1.