Abstract

References
1.
Halkin
H
Ravid
M
Zulman
J
Reichert
N
. (1974 ) Israel Journal of Medical Sciences
10 , 1148 .
2.
McCallum
D I
. (1966 ) Transactions of St John's Hospital Dermatological Society
52 , 244 .
3.
Medoff
G
Comfort
M
Kobayashi
G S
. (1971 ) Proceedings of the Society for Experimental Biology and Medicine
138 , 571 .
4.
Rook
A
Woods
B
. (1962 ) British Journal of Dermatology
74 , 43 .
5.
Spickard
A
. (1973 ) Southern Medical Journal
66 , 26 .
6.
St C Symmers
W
. (1973 ) British Medical Journal
ii , 423 .
