1. Report of a WHO Scientific Group, Guidelines for Evaluation of Drugs for Use in Man, World Health Organization Technical Report Series N° 563, Geneva, 1975.
2. Gist-Brocades ready for R & D shiftScrip 564, February 11, 1981, (p. 6).
3. Report of a WHO Scientific Group, Principles for Pre-Clinical Testing of Drug Safety, World Health Organization Technical Report Series N° 341, Geneva, 1966.
4. “Wissenschaftliche und regulatorische Tendenzen in der Arzneimittel-toxikologie”;Zbinden,1980
5. Are the drug-regulatory agencies paper villains ?;Smith;Brit. Med. J.,1980