A monoclonal antibodydefined antigen associated with gastrointestinal cancer is a ganglioside containing sialylated lacto-N-fucopentatose 2 - Magnani, J; Nilsson, B; Brockhaus, M; Zopf, D; Steplewski, Z; Koprowski, H; Ginsborg, V (J. biol. Chem, 1980)