- Dr Iolo Doull, Cystic Fibrosis Unit, Department of Child Health, University Hospital of Wales, Cardiff CF4 4XW.
- Accepted January 14, 1977
- First published May 1, 1997.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.