title: Commentary.
authors.affiliation: Warde Medical Laboratory, Ann Arbor, MI, USA. dfkeren@yahoo.com
authors.forename: David F
authors.initials: DF
authors.lastname: Keren
mesh_terms: D001609:Beta-Globulins / Q000032:analysis*; D001797:Blood Protein Electrophoresis; D005189:False Positive Reactions; D006362:Heavy Chain Disease / Q000097:blood / Q000175:diagnosis* / Q000652:urine; D006801:Humans; D007122:Immunoelectrophoresis; D007147:Immunoglobulin Light Chains / Q000097:blood / Q000652:urine; D007142:Immunoglobulin gamma-Chains / Q000097:blood*
chemical_list: D001609:Beta-Globulins; D007147:Immunoglobulin Light Chains; D007142:Immunoglobulin gamma-Chains