Document yrKnqD8grDzMgJggpExJrQeY3
FILE NAME Industrial Hygiene Foundation IHF
DATE 1957 DOC IHF034 DOCUMENT DESCRIPTION Letters - Manville
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oy
miners
The ing the conort
exposure to asbestos
If
are to restrict this we
to
asbestos condensation
a:
used in of emphasis should be placed on the choice defin def- in-
fact that all members of the cohort had 5 or more
should be reiterated
oo,
years of
.
Following are comments on certain paragraphosf the condensation
so believe We
the first sentence in paragraph 2 should read
one has written extensively - - - =",
;
Perhaps no
Page 14
In the third sentence of paragraph 2 the definition of cohort should
expanded to emphasize that exposed personsel were
be
oTthhiesr might be done by auding a sentence similar to the no ftolilnocwliundged ionfftihcee saanmdple
in the ecxopho or sted personnel regardless of length of employment were not included
Page 18
Page
sentence
posure
To further emphasize the exposure aspect of
of paragraph 2 might read All workers with
posure were placed in one of three categories
the miners the second more than 5 years of ex-
graph
It might be An previously
advisable to add another sentence at the end of this
noted workers with no
para-
exposure were not included in the data
In the last sentence of paragraph 1 we would like to suggest the dele-
tion of the phrase which have been explained in some detail since such explanation
was deleted in the condensation
This publication should form the basis for future surveys and reports
Dr. Braun should be asked to establish the framework of reporting for Doctors
Grainger and Cartier so that each year the status of every member of the original
cohort could be reported to the industrial Hygiene Foundation and the continuing
study be analyzed by their experts We cannot emphasize this point too
reported because nowhere in the literature today is there
valuable and which approximates this magnitude
a study which
strongly
is so
We agree with Doctors Cartier and Braun that a certain number
of probably have some asbestotic fibrosis which cannot be diagnosed by ray
other fortunately we cannot take lung biopsies on all workers and we have no
workers
Un-
means of making a diagnosis before there are ray changes Therefore the annual
study of all exposed asbestos workers becomes increasingly important
We feel that Dr. Braun and his staff are for this very valuable contribution to our medical efforts will be rewarded in the near future by the
recognized journal
to be congratulated heartily
knowledge We trust that their
publication of this work in a ra
SincerelySincerely
cenW. Smith M.D.
Kenneth Medical Director