Abstract
References
1.
Mason
A Y
. (1970 ) Proceedings of the Royal Society of Medicine
63 , Suppl. , pp 91 –94 .
2.
Mason
A Y
. (1974 ) In: Progress in Surgery . Ed.
Algöwer
M
Calne
R Y
. Karger , Basle ; p 66 –97 .
3.
Mason
A Y
. (1976 ) Clinics in Gastroenterology , 4 , 582 –593 .
4.
Morson
B C
. (1966 ) Proceedings of the Royal Society of Medicine , 59 , 607 –608 .