1. Statistics and Epidermiology, Warwick
Medical School, University of Warwick, Gibbet
Hill Road, Coventry, CV4
7AL, UK.
2. Sir Charles Gardiner Hospital and The
University of Western Australia, Nedlands, Perth
6009, Western Australia, Australia.
3. Warwick Medical School, University
of Warwick, Clinical Sciences Research Laboratories, Clifford
Bridge Road, Coventry, CV2
2DX, UK.
4. Centre for Clinical Research, Department
of Trauma and Orthopaedic Surgery, Unfallkrankenhaus
Berlin, Warener Street 7, 12683
Berlin, Germany.
5. Warwick Clinical Trials Unit, University
of Warwick, Gibbet Hill Road, Coventry, CV4
7AL, UK.