Allergy and clinical immunology--2001.
D000486:Allergy and Immunology / Q000191:economics / Q000193:education; D003365:Costs and Cost Analysis; D004501:Education, Medical / Q000458:organization & administration; D005544:Forecasting; D006801:Humans; D006967:Hypersensitivity / Q000191:economics; D012955:Societies, Medical / Q000458:organization & administration; D014481:United States