Zocht je misschien: schatting?
Reliability of the Dutch translation of the Kujala Patellofemoral Score Questionnaire
P. E. J. Ummels; A.F. Lenssen; M. Barendrecht; A. J. H. M. Beurskens
A prohibition on squatting in the Netherlands
M.J. Weijerman-Kerremans (Begeleider); Femke van der Zee (Student)