1. Brown J.C. andHunt R.C. (1978) Intern. Rev. Cytol.52, 277–349.
2. Bird G.W.G. (1977) In Hand Book Series in Clinical Laboratory Science. Section D, Vol.I (Greenwalt T.J. andSteane E.A. eds.) 459–473 CRC Press Inc. Cleveland, Ohio, U.S.A.
3. Bird G.W.G. (1977) Biotest Bull.2.
4. Renkonen K.O. (1948) Ann. Med. Exp. Fenn.26, 66.
5. Aubi Y., Iwabuchi M. andIshii S. (1971) Biochem. Biophys. Res. Commun.45, 1271.