Abstract

References
1.
Ask-Upmark
E
. (1954 ) Acta med. scand.
149 , 161 .
2.
Heggtveit
H A
Hennigar
G R
Morrione
T G
. (1963 ) Amer. J. Path.
42 , 151 .
3.
Hudson
R E B
. (1965 ) Cardiovascular Pathology , vol 2 . London ; p 545 .
4.
Isaacson
C
. (1961 ) J. Path. Bact.
81 , 69 .
5.
McKusick
V A
. (1962 ) Amer. Heart J.
63 , 57 .
6.
Schrire
V
Asherson
R A
. (1964 ) Quart. med. J.
33 , 439 .
