Abstract

References
1.
Bishopric
G.A.
, &
Bracken
J.S.
(1964 ) Southern Medical Journal (Nashville) 57 , 675 –678
2.
Gray
B.K.
,
Lockhart-Mummery
H.E.
, &
Morson
B.C.
(1965 ) Gut 6 , 515 –524
3.
Lockhart-Mummery
H.E.
(1964 ) Proceedings of the Roval Society of Medicine 57 , 897 –898
4.
McCallum
D.I.
, &
Gray
W.M.
(1976 ) British Journal of Dermatology 95 , 551 –554
5.
Mountain
J.C.
(1970 ) Gut 11 , 18 –26
6.
Neville
B.G.R.
,
Lake
B.D.
,
Stephens
R.
, &
Sanders
M.D.
(1973 ) Brain 96 , 97 –120
7.
Parks
A.G.
,
Morson
B.C.
, &
Pegum
J.S.
(1965 ) Proceedings of the Royal Society of Medicine 58 , 241 –242
8.
Strathers
G.M.
,
Abbott
L.G.
, &
McGuinness
A.E.
(1967 ) Archives of Dermatology 95 , 375 –380
