Author information:
(1)West of Scotland Regional Genetics Service, Laboratory Medicine Building, 
Queen Elizabeth University Hospital, Glasgow, United Kingdom. Electronic 
address: gabriella.gazdagh@ggc.scot.nhs.uk.
(2)Yorkshire Regional Genetics Service, Department of Clinical Genetics, Chapel 
Allerton Hospital, Leeds, United Kingdom.
(3)Bristol Clinical Genetics Service, St Michael's Hospital, Bristol, United 
Kingdom.
(4)Clinical Genetics Department, Royal Devon and Exeter NHS Foundation Trust, 
Exeter, United Kingdom.
(5)Department of Clinical Genetics, Addenbrookes Hospital, Cambridge, United 
Kingdom.
(6)South West Thames Regional Genetics Service, St. George's Hospital, London, 
United Kingdom.
(7)Academic Unit of Medical Genetics and Clinical Pathology, School of Medicine, 
College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, 
United Kingdom.
(8)Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, 
Cambridge, United Kingdom.
(9)West of Scotland Regional Genetics Service, Laboratory Medicine Building, 
Queen Elizabeth University Hospital, Glasgow, United Kingdom. Electronic 
address: shelagh.joss@ggc.scot.nhs.uk.