CEA: Carcinoembryonic antigen; LDH: Lactate dehydrogenase; CA-125: Cancer antigen 125; CA 19-9: Cancer antigen 19-9; AFP: Alpha-fetoprotein; CA-15.3: Cancer antigen 15.3; HCG: Human chorionic gonadotropin; N/A: Not applicable. This evidence concerns the gene AFP and cancer.