1. Ask, P., andÖberg, P. Å. (1984): ‘Teknisk säkerhet i Sjukvården (Technical safety in medical care)’ (Almqvist & Wiksell Förlag AB, Stockholm, 1984)
2. Deller, M. C. (1979): ‘Electrical safety in dialysis’,J. Med. Eng. Technol.,3, pp. 186–191
3. IEC (1974) ‘IEC publication 479’. Bureau Central de la Commission Electrotechnique International, Geneve, Suisse
4. IEC (1988a): ‘International standard, IEC 60601-1, Medical electrical equipment’. Bureau Central de la Commission Electrotechnique Internationale, Geneva, Switzerland
5. IEC (1988b): ‘International standard, IEC 60601-1, Medical electrical equipment’. Bureau Central de la Commission Electrotechnique Internationale, Geneva, Switzerland, subclause 2.5.3