Abstract

References
1.
Cayler
G G
. (1967 ) New Engl. J. Med . 276 , 65 .
2.
Hartmann
A F
Jr
Elliott
L P
. (1967 ) Amer. J. Cardiol . 19 , 290 .
3.
Hartmann
A F
Goldring
D
. (1966 ) Circulation
33–4 , Suppl. 3 , 125 .
4.
Mitchell
S C
Berendes
H W
Clark
W M
Jr
(1967 ) Amer. Heart J . 73 , 334 .
