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The C-509T polymorphism of TGF-β 1 gene has been associated with asthma and atopy in white populations.We investigated the association between asthma and previously identified polymorphisms at C-509T and T869C of the TGF-β 1 gene among 250 Chinese patients with asthma and 308 healthy controls in Hong Kong.Genotyping was performed on peripheral blood genomic DNA by using PCR-RFLP.There...
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