Full text
PDF
. 1987 Feb;42(2):159–160.
Reply
CP Van Der Schans
1, DA Piers
1, DS Postma
1
CP Van Der Schans
1Department of Physiotherapy of the Department of Rehabilitation, Lenshoek Kliniek, University Hospital, Oostersingel 59, 9713 Ez Groningen, The Netherlands
Find articles by CP Van Der Schans
DA Piers
1Department of Physiotherapy of the Department of Rehabilitation, Lenshoek Kliniek, University Hospital, Oostersingel 59, 9713 Ez Groningen, The Netherlands
Find articles by DA Piers
DS Postma
1Department of Physiotherapy of the Department of Rehabilitation, Lenshoek Kliniek, University Hospital, Oostersingel 59, 9713 Ez Groningen, The Netherlands
Find articles by DS Postma
1Department of Physiotherapy of the Department of Rehabilitation, Lenshoek Kliniek, University Hospital, Oostersingel 59, 9713 Ez Groningen, The Netherlands
PMCID: PMC460661