Abstract

References
1.
Grad
J C
&
Sainsbury
P
(1963 ) Lancet
i , 544
2.
Tizard
J
&
Grad
J
(1961 ) The Mentally Handicapped and Their Familes. Maudsley Monograph No. 7. London
3.
Wing
J K
Monck
E
Brown
G W
&
Carstairs
G M
(1964 ) Brit. J. Psychiat.
110 , 10
