title: The ultrastructure of normal and pathological IgM immunoglobulins.
mesh_terms: D000818:Animals; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D006801:Humans; D007075:Immunoglobulin M; D008259:Macroglobulins; D008854:Microscopy, Electron; D017955:Poliovirus / Q000276:immunology; D011817:Rabbits
chemical_list: D007075:Immunoglobulin M; D008259:Macroglobulins