1Gang Liua b,Deborah F,Barry S,et al.Chlamydia pneumoniae and Mycoplasma pneumoniae in young children from China with communityacquired pneumonia[J].Diagnostic Microbiology and Infectious Disease,2005,52(1):7.
2Rodriguez A,Tjarnlund A,lvanji J,et al.Role of IgA in the defense against respiratory infections IgA deficient mice exhibited increased susceptibility to intranasal infection with mycobacterium bovis BCG[J].Vaccine.2005,23(20):2565.