7D Alonzo GE, Tolep K.Salmeterol: a long-acting beta 2- agonist [J] .J Am Osteopath Assoc , 1998,98(4):216.
8Jarjiour NN, Lacouture PG, Busse WW.Theophylline inhibits the late asthmatic response to nighttime antigen challenge in patients with mild atopic asthma[J].Ann Allergy Asth ma Immunol, 1998,81(3): 231.
9Reed CE, Offord KP, Nelson HS, et al .Aerosol beclomethasone dipropionate spray compared with theophylline as primary treatment for chronic mild- moderate asthma[J] .J Allergy Clin Immunol , 1998, 101(1):14.
10Barnes PJ, Pedersen S, Busse WW .Efficacy and safety of inhaled corticosteroids: new developments[J ] .Am J Respir Crit Care Med, 1998,157(3): 1.