# Animals (Scientific Procedures) Act 1986, Paragraph 33


Irradiation or chemotherapy with a lethal dose—
(a) without reconstitution of the immune system, or
(b) with reconstitution of the immune system with production of graft versus host disease.

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Source: https://www.legislation.gov.uk/ukpga/1986/14/schedule/2AA/paragraph/33 (the official version)
Page: https://openlegislation.uk/animals-scientific-procedures-act-1986/schedule-2AA/paragraph-33
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.