Abstract
References
1.
Holland
W W
Garrard
J
Bennett
A E
Rhodes
P
. (1966 ) Lancet
i , 540 .
2.
Shepherd
M
Cooper
B
Brown
A C
Kalton
G W
. (1964 ) Brit. med. J.
ii , 1259 .
3.
Srole
L
Langner
T S
Michael
S T
Opler
M K
Rennie
T A C
. (1962 ) Mental Health in the Metropolis, the Midtown Manhattan Study . New York; p 138 .
4.
Wing
J K
Bransby
E R
. (1970 ) Psychiatric Case Registers . Dept of Health & Social Security Stat. Rep. Ser. No. 8. HMSO , London .