Gamma heavy chain disease. Where the heavy chains arise.
D001853:Bone Marrow / Q000276:immunology; D006362:Heavy Chain Disease / Q000276:immunology*; D006801:Humans; D007142:Immunoglobulin gamma-Chains; D008297:Male; D008875:Middle Aged; D013154:Spleen / Q000276:immunology
D007142:Immunoglobulin gamma-Chains