8PERIS J S M, LAI S T, POON L L M, et al.Coronavirus as a possible cause of severe respiratory syndrome[J].Lancet, 2003,361(9366):1319-1325.
9LEE N, HUI D, WU A, et al.A major outbreak of severe acute respiratory syndrome in Hong Kong[J].N Engl J Med ,2003,348(20):1986-1994.
10Pin I, Gibson PG, Kolendowicz R, et al. Iuduced sputum cell: a non invaive method to investigate airway inflammation in asthma [J]. Thorax, 1992, 47 (1): 25-29.