1.
Acta Belg Med Phys
; 13(2): 39-44, 1990.
Article
in Dutch
| MEDLINE
| ID: mdl-2239011
2.
J Belge Med Phys Rehabil
; 5(2): 55-60, 1982.
Article
in English
| MEDLINE
| ID: mdl-7153205