title: Commentary.
authors.affiliation: Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN. katzmann@mayo.edu.
authors.forename: Jerry A
authors.initials: JA
authors.lastname: Katzmann
mesh_terms: D006801:Humans; D008297:Male; D009101:Multiple Myeloma / Q000097:blood* / Q000276:immunology*