Correspondence: ragweed pollen.
D000485:Allergens; D031164:Ambrosia; D052179:Antigens, Plant; D006801:Humans; D010936:Plant Extracts; D011058:Pollen; D014887:Weather
D000485:Allergens; D052179:Antigens, Plant; D010936:Plant Extracts; C433085:ragweed pollen
POLLEN; RAGWEED; WEATHER