title: Same drug, different outcomes in the environmental exposure unit.
authors: B D
authors: BD
authors: Stone
mesh_terms: D018926:Anti-Allergic Agents / Q000627:therapeutic use*; D017332:Cetirizine / Q000627:therapeutic use; D018849:Controlled Clinical Trials as Topic; D006634:Histamine H1 Antagonists / Q000627:therapeutic use*; D006801:Humans; D017336:Loratadine / Q000627:therapeutic use*; D015203:Reproducibility of Results; D006255:Rhinitis, Allergic, Seasonal / Q000188:drug therapy*
chemical_list: D018926:Anti-Allergic Agents; D006634:Histamine H1 Antagonists; D017336:Loratadine; D017332:Cetirizine