Prophylaxis of summer hay-fever and asthma: a controlled trial comparing crude grass-pollen extracts with the isolated main protein component.
D000485:Allergens; D001249:Asthma / Q000517:prevention & control*; D006801:Humans; D006109:Poaceae; D011058:Pollen; D006255:Rhinitis, Allergic, Seasonal / Q000517:prevention & control*
D000485:Allergens
ASTHMA/prevention and control; HAY FEVER/prevention and control; POLLEN