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ArticleScientific reports2026

Lower socioeconomic status strengthens the risk of otitis media with effusion after COVID-19 infection: a case-crossover study in Northeast China.

Ruiyang Ma et al.PubMed ↗Full text ↗Publisher ↗

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Lower socioeconomic status strengthens the risk of otitis media with effusion after COVID-19 infection: a case-crossover study in Northeast China. | OpenQuestion