نتایج جستجو برای: negative and positive association
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background: it has been suggested that helicobacter pylori infection might reduce the risk of atopic conditions, such as asthma, in childhood. this risk reduction could relate to the “hygiene hypothesis” which proposes an association between childhood exposure to microbes and risk of atopy. objectives: to examine the association between hp infection and childhood acquired asthma in sardinia. pa...
Background : Hbs-Ag positivity rates in dialysis patients correlate with endemicity in the general population. There is a subset of patients with occult HBV infection that defined as the presence of detectable HBV-DNA by PCR in patients who are negative for Hbs-Ag. We decided to detect the occult HBV cases in our hemodialysis patients. Methods : With support of charity society of renal pati...
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