1. Helfrich, MH, Livingston, E, Franklin, IM, Soutar, RL. Blood Rev 11: 28–38, 1997.
2. Matsuoka, Y, Moore, GE, Yagi, Y, Pressman, D. Proc Soc Exp Biol Med 125: 1246–1250, 1967.
3. Nilsson, K, Bennich, H, Johansson, S, Pontén, J. Clin Exp Immunol 7: 477–489, 1970.
4. Jackson, N, Lowe, J, Ball, J, Bromidge, E, Ling, NR, Larkins, S, Griffith, MJ, Franklin, IM. Clin Exp Immunol 75: 93–99, 1989.
5. Shimizu, S, Yoshioka, R, Hirose, Y, Sugai, S, Tachibana, J, Konda, S. J Exp Med 169: 339–344, 1989.