Abstract
References
1.
Ashton
N
Henkind
P
(1965 ) Brit. J. Ophthal. (in press)
2.
Dollery
C T
Hodge
J V
Engel
M
(1962 ) Brit. med. J.
ii , 1210
3.
Jensen
U A
(1938 ) Acta ophthal.
16 , 485