周传麟

Prevalence and risk factors of recurrent respiratory tract infections in preschool children: a systematic review and meta-analysis

OBJECTIVE: To evaluate the prevalence and risk factors for recurrent respiratory tract infections in preschool children. METHODS: Studies on RRTIs in preschool children were retrieved from PubMed, Cochrane Library, Embase, Web of Science, CBM, CNKI, Wanfang, and VIP databases up...