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Calculation of enrichment factor revealed that soils in both dry and wet zones were moderately enriched with As, Cd, and Pb, suggesting an influence of anthropogenic processes. Twenty percent of the wet zone samples showed significant enrichment of Ni, Cu, and Zn. Geo-accumulation index assorted that the studied soil samples were uncontaminated to moderately contaminated, implying that rice soils in both climatic zones are not alarmingly contaminated with toxic trace elements. However, regular and continuous monitoring of rice soil qualit

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Diagnostic yields were 69.6 % for all procedures, 73.0 % for DBE and 55.6 % for SBE ( P  = 0.309). Therapeutic yields were 67.4 % overall 73.0 % for DBE and 44.4 % for SBE ( P  = 0.102). In those that presented with overt gastrointestinal bleeding, DBE had a higher diagnostic yield compared to SBE (84.2 % vs. 42.9 %; P  = 0.057) and a significantly higher therapeutic yield (84.2 % vs. 28.6 %; p = 0.014). Conclusions  This is the largest multicenter study of patients with LVADs who underwent DBE. BAE appears to be a safe and useful moda