Affiliations: Department of Genetic Medicine, St Mary's Hospital,
Manchester, UK
Note: [] Correspondence: Dr. Jill Clayton-Smith, Department of Genetic
Medicine, Manchester Academic Health Sciences Centre, St Mary's Hospital,
Manchester, M13 9WL, UK. Tel.: +44 161 276 6269; Fax: +44 161 276 6145; E-mail:
Jill.Clayton-smith@cmft.nhs.uk