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<meta property="og:title" content="Check if a variable consists of Danish CPR numbers — isCPR" />

<meta property="og:description" content="A checkFunction that checks if v consists exclusively
of valid Danish civil registration (CPR) numbers, ignoring missing values. This
function is intended for use as a precheck in makeDataReport, ensuring
that CPR numbers are not included in a dataMaid output document." />
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