* @param group Group number of the new Entry
* @param elem Element number of the new Entry
* @param vr V(alue) R(epresentation) of the new Entry
* \remarks The user of this method must destroy the DataEntry when unused
*/
* @param group Group number of the new Entry
* @param elem Element number of the new Entry
* @param vr V(alue) R(epresentation) of the new Entry
* \remarks The user of this method must destroy the DataEntry when unused
*/