| http://www.w3.org/ns/prov#value | - Using subjects with wild-type alleles for both reference groups, the OR of having null variants for both enzymes was not significantly different from unity (OR = 0.68, 95% CI = 0.34???1.38).The relationship of serum anti-OV antibody, smoking, alcohol use, diet or other environmental factors to risk for cholangiocarcinoma are shown in Table I. Elevated serum anti-OV antibody correlated with a nearl
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