1. A. A. Voitkevich, A. V. Tkachev, A. S. Chekunov, et al., Vestn. Akad. Med: Nauk SSSR, No. 9, 44 (1965).
2. I. I. Dedov, Ultrastructure of the Components of the Neurosecretory System in Radiation Lesions, Candidate's Dissertation, Obninsk (1967).
3. O. S. Frankfurt, Tsitologiya, No. 1, 123 (1970).
4. A. K. Afifi and J. M. Osborne, Anat. Rec.,143, 198 (1963).
5. A. K. Afifi, J. M. Osborne, and C. L. Mitchell, Radiat. Res.,23, 1 (1964).