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Books > Medicine > Pre-clinical medicine: basic sciences
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Carcinogenesis and Mutagenesis Testing (Hardcover, 1984 ed.)
Loot Price: R2,992
Discovery Miles 29 920
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Carcinogenesis and Mutagenesis Testing (Hardcover, 1984 ed.)
Series: Contemporary Biomedicine, 4
Expected to ship within 10 - 15 working days
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Donate to Against Period Poverty
Total price: R3,012
Discovery Miles: 30 120
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Cancer has become the most critical health problem in the United
States. It is expected that 25% of the people will develop this
dread disease, and many of these will die from the malady. The
causes of cancer are varied, but the best estimate available is
that 70--90% arise from environmental factors. These statistics
have triggered widespread governmental action along two lines: (l)
An effort to identify those chemicals and conditions that give rise
to malignant processes has been mounted by the Carcino genesis
Testing Program, the National Cancer Program, and subse quently,
the National Toxicology Program. (2) Regulatory laws have been
enacted that are administered by agencies such as TSCA, FIFRA, EPA,
FDA, OSHA, and so on, whose mission is to minimize public ex posure
to carcinogens. Since direct verification that specific chemicals
induce cancer in hu of unanticipated expo mans is necessarily
limited to known incidences sure and is therefore rare, most
chemicals are identified as carcinogens only by laboratory
experiments. At present, the only accepted procedure is long-term
animal bioassay, and not only are these studies expensive and
time-consuming, but current worldwide resources permit the evalua
tion of only 300-400 chemicals per year, a miniscule amount
compared to what is available in the commercial world: 30,000
existing chemicals, with approximately 700 new such materials being
introduced every year."
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