ABO blood groups in cancer of the gastro-intestinal tract.
D000017:ABO Blood-Group System; D005706:Gallbladder Neoplasms / Q000097:blood; D005770:Gastrointestinal Neoplasms / Q000097:blood*; D006801:Humans; D007414:Intestinal Neoplasms / Q000097:blood; D008113:Liver Neoplasms / Q000097:blood; D010190:Pancreatic Neoplasms / Q000097:blood; D013274:Stomach Neoplasms / Q000097:blood
D000017:ABO Blood-Group System