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Prevalence and risk factors for pterygium: a cross-sectional study in Han and Manchu ethnic populations in Hebei, China
AIMS: To investigate the prevalence, ethnic differences and associated risk factors for pterygium in Han and Manchu populations aged 40–79 years in Hebei province, China. DESIGN: Cross-sectional study, as a part of the China National Health Survey. SETTING: Hebei province, China. PARTICIPANTS: A mul...
Autores principales: | , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BMJ Publishing Group
2019
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6398733/ https://www.ncbi.nlm.nih.gov/pubmed/30796128 http://dx.doi.org/10.1136/bmjopen-2018-025725 |