value">
    <h2>Value</h2>
    <p>A <code>data.frame</code> with the LMS reference values.</p>
    </div>
    <div id="note">
    <h2>Note</h2>
    <p>No references for population <code>"gsed"</code> exist.
The function will silently rewrite <code>population = "gsed"</code>
into to the <code>population = "gsed"</code>.</p>
<p>The <code>"dutch"</code> reference was published in Van Buuren (2014)
The <code>"gcdg"</code> was calculated from 15 cohorts with direct
observations (Weber, 2019).
The <code>"phase1"<