1 ASAB Ethical Committee for the use of animals in research
(Animal Behavior 1993 ;45:209-12
2 Canadian Council on Animal Care
(Guide to the care and use of experimental animals : Vol. 1, 2nd Edn., 1993, Vol. 2, 1984)
3 European Communities Council Directive of 24 November 1986
(86/609/EEC).