2.3.
Blood
sampling
The
peripheral
blood
(4
ml)
was
collected
from
each
subject
in
the
morning.
The
blood
sample
was
divided
into
two
parts,
i.e.
1
ml
blood
sample
for
CBMNcyt
and
3
ml
blood
sample
for
comet
assay
and
MDA
assay.
All
blood
samples
were
put
into
the
sterile
polypropylene
tubes
containing
87USP
lithium
heparin
and
transported
to
laboratory
at
once
after
sampling
in
the
same
day