Abstract
References
1.
Christie
H
Mackay
R J
Fisher
A M
. (1963 ) American Industrial Hygiene Association Journal
24 , 42 –46 .
2.
Dale
K
. (1973 ) Scandinavian Journal of Respiratory Diseases
54 , 168 –184 .
3.
Elo
R
Määttä
K
Uksila
E
Arstila
A U
. (1972 ) Archives of Pathology
94 , 417 –424 .
4.
Ferin
J
Leach
L J
. (1976 ) Environmental Research
12 , 250 –254 .
5.
Heppleston
A G
. (1971 ) In: Inhaled Particles and Vapours III . Ed.
Walton
W H
. Unwin , Woking ; pp 357 –369 .
6.
Määttä
K
Arstila
A U
. (1975 ) Laboratory Investigation
33 , 342 –346 .
7.
Schmitz-Moorman
P
Horlein
H
Hanefeld
F
. (1964 ) Beiträge zur Silikose-Forschung
80 , 1 –17 .
8.
Uragoda
C G
Pinto
M R M
. (1972 ) Medical Journal of Australia
1 , 167 –169 .