Preclinical Evaluation of a Virtual Reality Neuropsychological Test System: Occurrence of Side Effects. - Tibor I. Kesztyues; Marcus Mehlitz; E. Schilken; Godehard Weniger; S. Wolf; Ursula Piccolo; E. Irle; Otto Rienhoff (Cyberpsychology Behav. Soc. Netw., 2000)