Cover figure courtesy of Watt et al, "CD164, a Novel Sialomucin on CD34⁺ and Erythroid Subsets, Is Located on Human Chromosome 6q21." The murine monoclonal antibody 103B2/9E10 was used alone with glycophorin C, glycophorin A, and band III antibodies to identify cells expressing both erythroid markers and the novel sialomucin CD164. Double-positive cells are indicated by the arrowheads. 849