1. Director, Inst. Med. Res., Kuala Lumpur, Fed. of Malayasia. Personal communication. 1957. 2. Director, Rockefeller Foundation Laboratory. Personal communication. 1960. 3. Russel, P.K. Personal communication. 1972. 4. Simpson, D.I.H., et al. 1970. Ann. Trop. Med. Parasitol. 64:137-151. 5. Stim, T.B. 1969. J. Gen. Virol. 5:329-338. 6. Rudnick, A. Personal communication. 1976. 7. Calisher, C.H., et al. Personal communication. 1983.
|