AFP	Alpha-fetoprotein
AJCC	American Joint Committee on Cancer
ALP	Alkaline phosphatase
ALT	Alanine aminotransferase
AST	Aspartate aminotransferase
CA19-9	Cancer antigen 19-9
CA72-4	Cancer antigen 72-4
CEA	Carcinoembryonic antigen
CI	Confidence interval
CRP	C-reactive protein
CT	Computed tomography
ECLIA	Electrochemiluminescent immunoassay
EGD	Esophagogastroduodenoscopy
ELISA	Enzyme-linked immunosorbent assay
ESMO	European Society for Medical Oncology
ESR	Erythrocyte sedimentation rate
GGT	Gamma-glutamyl transferase
IQR	Interquartile range
MRI	Magnetic resonance imaging
NK	Natural killer
NOS	Not otherwise specified
pTNM	Pathologic TNM
TNF-α	Tumor necrosis factor alpha
WHO	World Health Organization