baohong tao department of otorhinolaryngology, taizhou municipal hospital, the affiliated hospital of medical college of taizhou university, taizhou, zhejiang, 318000, china guiying ruan department of paediatrics, taizhou municipal hospital, the affiliated hospital of medical college of taizhou university, taizhou, zhejiang, 318000, china dongguo wang central laboratory, taizhou municipal hospital, the affiliated hospital of medical college of taizhou university, taizhou, zhejiang, 318000, china yong li department of otorhinolaryngology, taizhou municipal hospital, the affiliated hospital of medical college of taizhou university, taizhou, zhejiang, 318000, china zhuping wang department of paediatrics, taizhou municipal hospital, the affiliated hospital of medical college of taizhou university, taizhou, zhejiang, 318000, china genquan yin department of respiratory, guangzhou children's hospital, guangzhou, guangdong, 510120, china