title: [Control study on risk factors of children with secretory otitis media nested case].
authors.forename: Zhihui
authors.initials: Z
authors.lastname: Tang
authors.forename: Zengping
authors.initials: Z
authors.lastname: Lin
mesh_terms: D016022:Case-Control Studies; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D010034:Otitis Media with Effusion / Q000209:etiology*; D012307:Risk Factors