M. Naves - Central University Hospital of Asturias
A. H. Hajeer - Wisconsin Disability Association
L. S. Teh - Royal Blackburn Teaching Hospital
E. J. Davies - Wisconsin Disability Association
J. Ordi-Ros - Vall d'Hebron Hospital Universitari
P. Perez-Pemen - Vall d'Hebron Hospital Universitari
M. Vilardel-Tarres - Vall d'Hebron Hospital Universitari
W. Thomson - Wisconsin Disability Association
J. Worthington - Wisconsin Disability Association
W. E. R. Ollier - Wisconsin Disability Association