Abstract

References
1.
Bourdillon
R E
Clarke
C A
Ridges
A P
Sheppard
P M
Harper
P
Leslie
S A
(1965 ) Nature, Lond . 208 , 453
2.
Friedhoff
A J
Van Winkle
E
(1962 ) Nature, Lond . 194 , 897
3.
Friedhoff
A J
Van Winkle
E
(1963 ) J. Chromatog . 11 , 272
4.
Howorth
P J N
(1966 ) Hosp. Med.
1 , 115
5.
Kuehl
F A
Hitchens
M
Ormond
R E
Meisinger
M A P
Gale
P H
Cirillo
V J
Brink
N G
(1964 ) Nature, Lond . 203 , 154
6.
Sen
N P
McGeer
P L
(1964 ) Biochem. biophys. Res. Commun . 14 , 227
7.
Williams
C H
Gibson
J G
McCormick
W O
(1966 ) Nature, Lond . 211 , 1195
