Abstract

References
1.
Palmes
E D
Orris
L
Nelson
N
(1962 ) American Industrial Hygiene Association Journal
23 , 257 –264 .
2.
Perkins
J J
(1969 ) Principles and Methods of Sterilization in Health Sciences . Thomas , Springfield, Ill. ; p 289 .
3.
Roe
F J C
Glendenning
D M
(1956 ) British Journal of Cancer
10 , 357 –362 .
