1Hewson-Bower, B. Secretory immunoglobulin A increases during relaxation in children with and without recurrent upper respiratory tract infections. J-Dev-Pediar. 1996 Oct, 17(5) :31146.
4Daele,J. Humoral immunodeficiency in recurrent upper respiratory tract infections[J]. Some basic, clinical and therapeutic features Acta-Otorhinolaryngol-Belg. 2000,54(3): 373-390.
5Daele J, Zicot AF. Humoral immunodeficiency in re- current upper respiratory tract infections. Some basic, clinical and therapeutic features[J]. Acta Otorhinolaryngol Belg,2000,54(3):373 - 390.
6Hewson-Bower B. Secretory immunoglobulin A increa- ses during relaxation in children with and without recur- rent upper respiratory tract infections[J]. J Dev Pedlar, 1996,17(5) :31 - 46.
