Timothy W. Hefferon - National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland,USA Ferec C., Audrezet MP, Chen JM - INSERM, U613 (Génétique Moléculaire et Génétique Epidémiologique), Brest, France | - | Krenkova P., Piskáčková T., Macek Jr. M - Department of Biology and Medical Genetics, 2nd Faculty of Medicine and Faculty Hospital Motol, Prague, Czech Republic |