Letters to the Editor

Davies P (1984) British Journal of Radiology 57, 87.

Department of Health and Social Security (1984) HN (Hazard) (84) 14.

Edwards A C (1983) In: A Manual of Central Venous Catheterisation and Parenteral Nutrition. Ed. Peters J L . Wright PSG, Bristol; chapter 14.

Hill G L (1982) In: Essential Surgical Practice. Ed. Cuśchieri A Wright PSG, Bristol; p 116.

John G E (1972) DHSS (Supply). Hazard Notice HN(6).

Mehta A B Goldman J M Hemingway A P Allison D J (1983) British Medical Journal 286, 937.

Medical Defence Union (1979) Annual Report. MDU, London; p 21.

Peters J L Kurzer M (1981) British Medical Journal 282, 400–401.

Weston G A Newby D M Beck P R Foord K D (1984) British Journal of Parenteral Therapy 5, 208–212.