1. Royal Children's Hospital, Parkville, Vic. 3052
2. Roger C. Allen, MB, BS, Paediatric Registrar
3. David J. Hill. MB, BS, MRACP, Head, Allergy‐Clinical Immunology Unit
4. Royal Melbourne Institute of Technology, Melbourne, Vic. 3000
5. Hugh J. Cornell, MSc, PhD, Senior Lecturer in Applied Chemistry
6. Austin Hospital, Heidelberg, Vic. 3084
7. Richard Johnson, MB, BS, Gastroenterology Reqistrar
8. Richard A. Smallwood, MD. FRACP, Director of Gastroenterology