 exist in the optional input set of
studies specified in <code>studyList</code> - separated by '|'.</p></li>
<li><p>NOT_VALID_MSG (character)<br>
Included when parameter <code>noFilterReportUncertain=TRUE</code>.<br>
In case the SDESIGN cannot be confidently decided, the column contains an
indication of the reason.<br>
Is NA for rows where SDESIGN can be confidently decided.<br>
A non-empty NOT_VALID_MSG value generated by this function is merged with
non-empty NOT_VALID_MSG values which may exist in the in