6Bonadonna P,Senna G,Zanon P,et al.Cold-induced rhinitis in skiers-clinical aspects and treatment with ipratropium bromide nasal spray:a randomized controlled trial[J].Am J Rhinol,2001,15(5):297 -301.
7Shusterman D,Murphy MA,Walsh P,et al.Cholinergic blockade does not alter the nasal congestive response to irritant provocation[ J ].Rhinology,2002,40(3):141-146.
8Grossman J,Banov C,Boggs P,et al.Use of ipratropium bromide nasal spray in chronic treatment of nonallergic perennial rhinitis,alone and in combination with other perennial rhinitis medications[J].J Allergy Clin Immunol,1995,95:1123 -1127.