Subjective ratings vs objective measurement of cognitive function: In Regard to van Beek et al.
Int J Radiat Oncol Biol Phys 2007;68: 986-991

Martin Klein, Ph.D., 1 Jaap C. Reijneveld, M.D., Ph.D., 2, and Jan J.Heimans, M.D., Ph.D. 2
Department of 1 Medical Psychology , and 2 Department of Neurology, VU University Medical Center, Amsterdam, the Netherlands.