1. Jacobsen, L., Simmons, E. & Block, M. J. Lab. clin. Med. 34, 1640–1655 (1949).
2. Adler, S., Trobaugh, F. & Knospe, W. J. Lab. clin. Med. 89, 592–602 (1977).
3. Sawyer, R., Strausbauch, P. & Morahan, P. Lab. Invest. 46, 165–170 (1982).
4. Volkman, A., Chang, N., Strausbauch, P. & Morahan, P. Lab. Invest. 49, 291–298 (1983).
5. Shibata, Y. & Volkman, A. J. Immunol. 135, 3897–3904 (1985).