British Toxicology Society Working Party on Toxicity.A new approach to the classification of substances and preparations on the basis of their acute toxicity. Human Toxicology1984; 3: 85-92.
2.
Fielder RJ, Gaunt IF, Rhodes C., Sullivan FM & Swanston DWA hierarchical approach to the assessment of dermal and ocular irritancy: a report of the British Toxicology Society Working Party on Irritancy. Human Toxicology1987; 6: 269-78.