目的探讨引起儿童反复呼吸道感染的因素，为儿童反复呼吸道感染预防及治疗提供参考依据。
Objective to discuss the factors causing repeated respiratory tract infection in children so as to provide references for the prevention and treatment.
目的探讨血清甘露聚糖结合凝集素(MBL)水平及基因多态性与儿童反复呼吸道感染(RRTI)的关系。
Objective to investigate the relationship between the serum mannose-binding lectin (MBL) levels, gene polymorphisms and recurrent respiratory tract infection (RRTI).
小儿反复呼吸道感染是儿童在临床上的常见病。
Repeatedly respiratory infection of children is common disease in clinic.
患反复呼吸道感染儿童约占儿童总数的2 0 %左右。
The incidence rate of repetitive respiratory tract infection was about 20%.
患反复呼吸道感染儿童约占儿童总数的2 0 %左右。
The incidence rate of repetitive respiratory tract infection was about 20%.
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