title: Exceptionally high serum IgM levels (case 18-1991)
authors.forename: J R
authors.initials: JR
authors.lastname: Hobbs
mesh_terms: D000368:Aged; D006801:Humans; D007075:Immunoglobulin M / Q000032:analysis*; D008297:Male; D009369:Neoplasms / Q000276:immunology
chemical_list: D007075:Immunoglobulin M