Telomere length according to age in non–dyskeratosis congenita patients and their relatives. The vertical axis represents telomere length in kilobytes. Lines in the figures indicate the first, tenth, 50th, 90th, and 99th percentiles of results from 400 normal control subjects. Symbols represent subjects: 13 Fanconi anemia (FA) patients (red solid circle), one FA postbone marrow transplant (blue solid circle), 3 FA mosaics (turquoise solid circle), 14 Diamond-Blackfan anemia (green solid triangle), 5 Shwachman-Diamond syndrome (black solid diamond), 10 other (magenta solid square), and 35 relatives (open square).