3Yamasaki A, Hanaki K, Tomita K, et al. Cough and asth- ma diagnosis: physicians" diagnosis and treatment of pa- tients complaining of acute, subacute and chronic cough in rural areas of Japan[ J]. Int J Gen Med, 2010,3:101-107.
5Shirahata K, Fujimoto K, Arioka H, et al. Prevalence and clinical features of cough variant asthma in a general inter- nal medicine outpatient clinic in Japan [ J 1 Respirology, 2005,10(3) :354-358.
7Matsumoto H, Niimi A, Takemura M, et al. Features of cough variant asthma and classic asthma during methacho- line-induced brochoconstriction: a cross-sectional study [J]. Cough, 2009,5:3.
7Fujimura M, Ogawa H, Nishizawa Y, et al. Comparison of atopic cough with cough variant asthma: is atopic couph a precursor of asthma.Thorax, 2003,58( 1 ) : 14.
8Matsumoto H, Niimi A, Takemura M, et al. Prognostic factors of cough variant asthma: a retrospective analysis. J Asthma, 2006, 43:131-135.
9Kang H, Koh YY, Yoo Y, et al. Maximal airway response to methacholine in cough-variant asthma: comparison with classic asthma and its relationship to peak expiratory flow variability. Chest,2005,128(10) : 3881-3887.
10Corrao WM, Braman SS, Irwin RS. Chronic cough as the sole presenting manifestation of bronchial asthma. N Engl J Med, 1979,300: 633-637.
