3[1]Burrows B,Earle RH.Course and prognosis of chronic obstructive lung disease:a prospective study of 200 patients.N Engl J Med,1969,280:397.
4[3]Nohynek H,Teppo AM,Laine E,et al.Serum tumor necrosis factor-2 concentrations in children hospitalized for acute respitatory tract infection.J Infect Dis,1999,163:1029.
5[7]Burrows B,Bloom JW,Traver GA,et al.The course and prognosis of different forms of chronic airway obstruction in a sample from the general population.N Engl J Med,1987,317:1309.
6[8]Hansen EF,Phanareth K,Laursen KC,et al.Reversible and irreversible airflow obstruction as predictor of overall mortality in asthma and chronic obstructive pulmonary disease.Am J Respir Crit Med,1999,159:1267.
7[9]Dowson LJ,Guest PJ,Stockley RS.Longitudinal changes in physiological,radiological,and health status measurements in alpha-1-antitrypsin deficiency and factors associated with decline.Am J Respir Crit Med,2001,164:1805.
10Fan XG, Takoob J, Fan X J, et al. A change of IL- 2 and IL- 4Production in Patients with Helicobacter pylori infection [J].Mediators Inflam, 1995, (4): 289 -292.