SELDI-TOF-MS analyses of red blood cell lysates. Globin proteins detected in erythrocytes from 3 cord blood (A) and adult blood (B) samples are displayed in the 14 000-Da to 17 000-Da mass range (top of each panel). Arrows indicate the α-, β-, and γ-globin proteins. Dotted lines indicate the expected location of μ-globin if it were present.