1. Joyce, L.D., Devries, W.C., Hastings, W.L., Olsen, D.B., Jarvik, R.K., and Kolff, W.J., Trans. Am. Soc. Artif. Intern. Organs, 29: 81, 1983.
2. Bruck, S.D., J. Biomed. Mater. Res., 6: 173, 1972.
3. Hampton, J.R. and Mitchell, J.R.A., in Human Blood Coagulation, Haemostatis and Thrombosis, R. Biggs, ed., pp. 476, Blackwell Scientific, Oxford, 1972.
4. Cliffton, E.E., Bibl. Haematol. Basel, 29: 841, 1968.
5. Vroman, L., and Adams, A.L., J. Biomed. Mater. Res. 3: 43, 1969.