Absent IgA and deletions of chromosome 18.
D000293:Adolescent; D000328:Adult; D001789:Blood Group Antigens; D002675:Child, Preschool; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D002902:Chromosomes, Human, 16-18; D005260:Female; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis*; D007136:Immunoglobulins / Q000032:analysis; D007223:Infant; D007621:Karyotyping; D008297:Male; D008875:Middle Aged; D010375:Pedigree; D012463:Saliva / Q000276:immunology
D001789:Blood Group Antigens; D007074:Immunoglobulin G; D007136:Immunoglobulins