IgA and partial deletions of chromosome 18.
D002869:Chromosome Aberrations; D002902:Chromosomes, Human, 16-18; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D007223:Infant; D008297:Male; D005719:gamma-Globulins / Q000032:analysis*
D007074:Immunoglobulin G; D007075:Immunoglobulin M; D005719:gamma-Globulins