Abstract
References
1.
Boyd
O P
. (1958 ) Surg. Clin. N. Amer.
38 , 619 .
2.
Boyd
O P
. (1966 ) New Engl. J. Med.
275 , 911 .
3.
Moore
H D
. (1963 ) Ann. Surg.
158 , 240 .
4.
Wooler
G H
. (1956 ) Thorax
11 , 211 .