* MFA-3: "Event Completion Date/Time" - creates it if necessary
*/
public TS getEventCompletionDateTime() {
TS ret = null;
try {
Type t = this.getField(3, 0);
ret = (TS)t;
} catch (ClassCastException cce) {
LoggerFactory.getLogger(getClass()).error("Unexpected problem obtaining field value. This is a bug.", cce);
throw new RuntimeException(cce);
} catch (HL7Exception he) {