Fig. 1From: Primary immunodeficiency associated with chromosomal aberration – an ESID surveyLevels of immunoglobulin isotypes. Every dot represents a patient. The bold black line is the lower limit of normal according to age-matched reference values (ref de Vries E. Clin Exp Immunol 2012;167(1):108–19.). a: IgG in g/L. b: IgA in g/L; two values > 2.0 g/l are not displayed in the graph. c: IgM in g/LBack to article page