6Irwin RS, Boulet LP, Cloutier MM, et al. Managing cough as a defense mechanism and as a symptom. A consenus panel report of the American College of Chest Physicans[J]. Chest, 1998,114: 133-181.
7Poe RH, Harder RV, Israel RH, et al. Chronic persistent cough : experience in diagnosis and outcome using an anatomic diagnostic protocol [J]. Chest, 1989, 95: 723-728.
8Heikkinen T, Jarvinen A. The common cold [ J ]. Lancet,2003, 361:51 -59.
9Folkerts G, Busse WW, Nijkamp FP, et al. Virus - induced airway hyperresponsiveness and asthma Am [ J ]. J Respir Crit Care Med, 1998, 157 (6): 1708-1720.
10Busse WW. The contribution of viral respiratory infections to the pathogenesis of airway hyperreactivity[J]. Chest, 1988, 93(5): 1076 -1082.