<s>
Bronchial	B-Algorithm
brushing	I-Algorithm
is	O
a	O
procedure	O
in	O
which	O
cells	O
are	O
taken	O
from	O
the	O
inside	O
of	O
the	O
airway	O
mucosa	O
or	O
bronchial	O
lesions	O
through	O
catheter-based	O
brushing	O
under	O
direct	O
visualization	O
or	O
fluoroscopic	O
guidance	O
.	O
</s>
<s>
A	O
bronchial	B-Algorithm
brushing	I-Algorithm
is	O
used	O
to	O
find	O
cancer	O
and	O
changes	O
in	O
cells	O
that	O
may	O
lead	O
to	O
cancer	O
.	O
</s>
