Fanconi anemia (FA), red circles (open circles are patients with cancer); dyskeratosis congenita (DC), blue squares (open squares are patients with Hoyerral-Hreidarsson syndrome); Diamond-Blackfan anemia (DBA), black triangles; Shwachman-Diamond syndrome (SDS), green diamonds.
Upper and lower dotted lines represent the 90th and the 10th percentile respectively, of the normal ranges for age as established by the National Institutes of Health Clinical Center Department of Laboratory Medicine (http://cclnprod.cc.nih.gov/dlm/testguide.nsf).