Patient reliability in judging a single agent studied. Response to an antihistamine.
D018926:Anti-Allergic Agents; D006634:Histamine H1 Antagonists; D006801:Humans; D011611:Psychosomatic Medicine; D015203:Reproducibility of Results; D012106:Research; D006255:Rhinitis, Allergic, Seasonal
D018926:Anti-Allergic Agents; D006634:Histamine H1 Antagonists
ANTIHISTAMINICS; HAY FEVER; PSYCHOSOMATIC MEDICINE