| http://www.w3.org/ns/prov#value | - However, registry data also have limitations, including selection bias, information bias (noninclusion of patients referred for PPCI but not receiving it), incomplete and inappropriately short follow-up, frequent exclusion of patients transferred for PPCI, and residual confounding (lack of detailed measurements of important covariates).7,8,10,13,14 An assessment of bias within a large patient regi
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