2Pin I, Gikson PG, Kolendowice R, et al. Use of induced sputum cell counts to investigate airway inflammation in asthma. Thorax, 1992,47 : 25-29.
3Hunter CJ, Ward R, Woltmann G, et al. The safety and success rate of sputum induction using a low output ul-trasonic nebuliser. Res Med, 1999,93:345-348.
4Twaddell SH, Gibson PG, Carry K, et al. Assessment of airway inflammation in children with acute asthma using induced sputum.Eur Respir J, 1996,9:2104-2108.
5Grootendorst 13(3, Bosj W, Romeijn JJ, et al. Induced sputum in adolescents with severs stable asthma. Safety and the relationship of cell counts and eosinophil cationic protein to clinical severity. Eur Respir J, 1999,13: 647-653.
6Wong H, Fahy JV. Safety of one method of sputum induction in asmmatic subject. Am J Respir Crit Med, 1997,155 : 299-303.
7Pin I, Gibson PG, Kolendowice R,et al.Use of induced sputum cell counts to investigate airway inflammation in asthma. Thorax,1992,47∶25-29.
8Hunter CJ, Ward R, Woltmann G, et al. The safety and success rate of sputum induction using a low output ul-trasonic nebuliser. Res Med, 1999,93∶345-348.
9Twaddell SH, Gibson PG, Carty K, et al. Assessment of airway inflammation in children with acute asthma using induced sputum. Eur Respir J, 1996,9∶2104-2108.
10Grootendorst DC, Bosj W, Romeijn JJ, et al. Induced sputum in adolescents with severs stable asthma. Safety and the relationship of cell counts and eosinophil cationic protein to clinical severity. Eur Respir J, 1999,13∶647-653.
