Table 2. Copy number variations in all biliary cancers.

Gene	CNV+	CNV total number	CNV, %
Her2/Neu	16	342	4.7
MYC	11	342	3.2
MDM2	11	342	3.2
cMET	8	342	2.3
CCND1	7	342	2.0
CCNE1	7	342	2.0
HMGA2	6	325	1.8
KRAS	6	325	1.8
FGF4	6	342	1.8
FGF3	6	342	1.8
WIF1	5	325	1.5
FGF19	5	325	1.5
MLLT6	5	325	1.5
PDCD1	4	325	1.2
RARA	4	325	1.2
MCL1	4	342	1.2
CDK4	4	342	1.2
FGFR3	4	342	1.2

CNV, copy number variation.