1. The TSC1 Consortium:
2. M. van Slegtenhorst, R. de Hoogt, C. Hermans, M. Nellist, B. Janssen, S. Verhoef, D. Lindhout, A. van den Ouweland, D. Halley, Department of Clinical Genetics, Erasmus University and University Hospital, Rotterdam, Netherlands.
3. J. Young, M. Burley, S. Jeremiah, K. Woodward, J. Nahmias, M. Fox, R. Ekong, J. Wolfe, S. Povey, MRC Human Biochemical Genetics Unit and Galton Laboratory, University College of London, London NW1 2HE, UK.
4. J. Osborne, University of Bath, Bath BA2 7AY, UK.
5. R. G. Snell, J. P. Cheadle, A. C. Jones, M. Tachataki, D. Ravine, J. R. Sampson, Institute of Medical Genetics, University of Wales College of Medicine, Cardiff CF4 4XN, Wales, UK.