Abstract
References
1.
Baer
R L
,
Rosenthal
S A
,
Litt
J Z
&
Rogachefsky
H
(1955 ) Amer. J. publ. Hlth
45 , 784
2.
English
M P
&
Gibson
M D
(1959 ) Brit. med. J.
i , 1442 , 1448
3.
Gentles
J C
(1956 ) J. clin. Path . 9 , 374
4.
Gentles
J C
&
Holmes
J G
(1957 ) Brit. J. industr. Med . 14 , 22
5.
Holmes
J G
&
Gentles
J C
(1956 ) Lancet
ii , 62
6.
Sarkany
I
,
Taplin
D
&
Blank
H
(1961 ) J. Amer. med. Ass . 177 , 130
7.
Sulzberger
M B
&
Baer
R L
(1954 ) Yearb. Derm. Syph. (1953–1954) p 15
8.
Tritsmans
E
&
Vanbreuseghem
R
(1955 ) Belg. Tijdschr. Geneesk . 11 , 13 , 625
9.
Weidman
F D
,
Emmons
C W
,
Hopkins
J G
&
Lewis
G M
(1945 ) J. Amer. med. Ass . 128 , 805
10.
Whitfield
A
(1911 ) Proc. R. Soc. Med.
5 , Sect. Derm. p 36 (Brit. J. Derm. 23, 375)