Table I. Clinical data of subjects included in mass spectrometry analysis.

F, female; M, male; N/A, not applicable to the controls.

Identification	Gender	Age	Liver lesion	Tumor size	Histological type
		yr		cm
Tumors
CA	F	39	Intrahepatic cholangiocarcinoma	7	Glandular structure
CB	F	62	Intrahepatic cholangiocarcinoma	6	Mixed architecture
CC	M	77	Intrahepatic cholangiocarcinoma	12	Glandular structure
CD	M	55	Intrahepatic cholangiocarcinoma	14	Compact architecture
Controls
TB	M	48	Cirrhosis	N/A	N/A
TC	M	53	Cirrhosis	N/A	N/A
TD	F	45	Subacute hepatitis	N/A	N/A
TE	F	61	Cirrhosis	N/A	N/A
TF	M	53	Hepatocellular carcinoma	N/A	N/A