title: Expanding role of the allergist in clinical immunology.
mesh_terms: D000486:Allergy and Immunology / Q000193:education*; D019411:Clinical Laboratory Techniques / Q000193:education*; D006967:Hypersensitivity; D008511:Medicine; D012216:Rheumatic Diseases; D013038:Specialization; D014181:Transplantation Immunology; D014481:United States