Just to let you all know that I have the answer to my query - thanks to everyone who responded so promptly. Kati Allergy; principles and practice. 4th ed. 1993. Mosby. ISBN 0801664276 If anyone has this book please could they send me a list of all the editors. The first editor is Middleton, E. I have tried all the usual sources including phoning Mosby. Many thanks. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%