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Chinese
不同孕期服用叶酸与婴幼儿喘息相关性的病例对照研究
杨静，于艳艳，王宜芬，钱前，李伟
Chinese General Practice . 2015, (
35
): 4310 -4312 . DOI: 10.3969/j.issn.1007-9572.2015.35.009
