1Nicholas J W, Tracey B, Lindsey D, et al. Asthma in the elderly: diagnostic and therapeutic considerations. In Stephen T H, Homer A B, Leonardo M F, ct al,cd. Difficult Asthma[M].London : Martin Dunitz, 1999 : 147.
2Braman S. Asthma in the elderly[J]. Clin Chest Med, 1993,14(3) :413.
3Tuuponen T, Keistinen T, Kivela S, et al. Hospital admissions for asthma in Finland during 1972-1986 of adults aged 65 years andover[J]. Age Aging, 1993,22(2): 96.
4Smyth E, Wright S, Evans A, et al. Death from airways obstruction: accuracy of death certification in Northern Ireland[J]. Thorax, 1996,51(3): 293.
5Enright P, Kronma R, Higgins M, ct al. Spiromctry reference values for women and men aged 65 to 84 years of age.Cardiovascular Health Study [J]. Am Rev Rcspi Dis, 1993,147(1): 125.
6Sharp D, Enright P, Chiu D, ct al. Reference values for pulmonary function tests of Japanese-American men aged 71 to 90 years [J]. Am J Respir Crit Care Med, 1996,153(2): 805.
7Enright P, Burchette R, Peters J, et al. Peak flow liability.Association with asthma and spiromctry in an older cohort[J].Chest, 1997,112(4): 895.
8Enright P, Sherrill D, Giannini D, et al. Ambulatory monitoring of peak expiratory flow: reproducibility and quality control[J].Chest, 1995,107(3): 657.
9Connolly M, Crowley J, Nielsen C, et al. Peripheral mononuelear leueoeyte beta-adrenoreeeptors and non-speeifie bronehial responsiveness to metaeholine in young and elderly normal and asthmatie patients[J]. Thorax, 1994,49(1): 26.
