四川省卫生计生委科研课题资助项目16P238;四川省儿科临床医学研究中心资助项目川科研 2017-46-4;第四届《中华儿科杂志》百利儿科科研基金项目B2016-C-3;四川大学华西第二医院临床科研基金项目K012Scientific Research Project of Health and Family Planning Commission of Sichuan Province16P238;Project of Pediatric Clinical Medical Research Center of Sichuan Province2017-46-4;the Forth Baili Scientific Research Project of Chinese Journal of PediatricsB2016-C-3;Clinical Medical Research Project of West China Second University Hospital,Sichuan UniversityK012