Abstract
References
1.
Calnan
J S
Kountz
S
Pentecost
B L
Shillingford
J P
Steiner
R E
. (1964 ) Brit. med. J.
ii , 221 .
2.
Cockett
F B
Lea Thomas
M
. (1965 ) Brit. J. Surg.
52 , 816 .
3.
Lea Thomas
M
Fletcher
E W L
Cockett
F B
Negus
D
. (1967 ) Clin. Radiol.
18 , 403 .