Methods:150 cases with RRI were randomly divided into the treatment group (75 cases) and the contrast I group (75 cases).

• 方法将反复呼吸道感染患儿150例随机分为治疗、对照两组,各75例。治疗组用白苓健脾颗粒合转移因子治疗,对照组单用转移因子治疗。