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Lung cancer was known
as "mine
disease"
in
1420.
Until
1912,
only
341 cases
of
lung
cancer
was
recorded in the
world.
But now, at least
660
thousand
cases
of
lung
cancer
are
reported each year
with
increasing
prevalence.
Lung cancer
is
the
most
common
among
various kinds
of
cancer.
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