The preparation of highly concentrated allergenic extracts by increasing the concentration of extraction. I. Timothy and low ragweed pollens.
D000485:Allergens; D052179:Antigens, Plant; D006967:Hypersensitivity; D031784:Phleum; D010936:Plant Extracts; D011058:Pollen
D000485:Allergens; D052179:Antigens, Plant; D010936:Plant Extracts; C433085:ragweed pollen
ALLERGY; POLLEN