1. Morton, J.A., Pickles, M.M., Terry, A.M.: The Sda blood group antigen in tissues and body fluids. Vox Sang. 19, 472–482 (1970)
2. Morton, J.A., Pickles, M.M., Vanhegan, R.I.: The Sda antigen in the human kidney and colon. Immunol. Invest 17, 217–224 (1988)
3. Renton, P.H., Howell, P., Ikin, E.W., Giles, C.M., Goldsmith, K.L.: Anti Sda: a new blood group antibody. Vox Sang. 13, 493–501 (1967)
4. Macvie, S.I., Morton, J.A., Pickles, M.M.: The reactions and inheritance of a new blood group antigen. Vox Sang. 13, 485–492 (1967)
5. Sanger, R., Gavin, J., Tippett, P., Teesdale, P., Eldon, K.: Plant agglutinin for another human blood-group. Lancet 1, 1130 (1971)