1. The defendant's appeal and the plaintiff's incidental appeal are all dismissed.

2. Costs arising from an appeal and an incidental appeal shall be respectively.

1. The reasons for the court's explanation concerning this case are the same as the part of the judgment of the first instance, except for adding the results of fact-finding as to both Korea Labor Welfare Corporation and the President of the Busan National University Hospital, and the results of fact-finding as to the director of the Busan National University Hospital, as additional evidence submitted by the court of first instance, for the defendant's insufficient or rejected evidence of the defendant's assertion. Thus, this is the same as the part of the judgment of the first instance.

2. Thus, the judgment of the court of first instance which partially accepted the plaintiff's claim of this case is justifiable. Thus, all of the defendant's appeal and the plaintiff's incidental appeal are dismissed as it is without merit. It is so decided as per Disposition.