1. Alpert M, Goldstein D, Triner L (1982) Technique of endotracheal intubation in rats. Lab Anim 32:78–79
2. Commission of the European Communities (1993) Recommendations for euthanasia of experimental animals, Final report
3. Erhard W, Scherer M, Greiner C, Blümel G (1985) Methods of low term anaesthesia in the rat. Z Versuchstierkunde 27:84
4. Federal Veterinary Office, Switzerland (1993) Guidelines for skillful and human euthanasia of laboratory animals
5. First Report of the BVA/FRAME/RSPCA/UFAW Joint Working Group on Refinement, Removal of blood from laboratory mammals and birds. Laboratory Animals (1993) 27:1–22