The immunologically reactive O-linked polysaccharide chains derived from circulating cathodic antigen isolated from the human blood fluke Schistosoma mansoni have Lewis x as repeating unit. (1994)

van Dam G, Bergwerff A, Thomas-Oates J, Rotmans J, Kamerling J, Vliegenthart J, Deelder A
Eur J Biochem, 1994 vol.225:467-482