Department of Neurology, Human Mitochondrial DNA Laboratory, Harvard, USA
Center for Molecular Medicine, Emory University, Atlanta, GA, USA
Department of Ophthalmology, University of Melbourne, Australia
Department of Ophthalmology, Kitasato University Japan
Montreal Neurological Institute, McGill University, Canada

Molecular Diagnostic Laboratory, Geneva, Switzerland

Institute of Ophthalmology, University Hospital, Nijmegen, Holland

Department of Neuropediatrics Children Clinic University Goettingen,Germany
Dept. of Molecular Genetics, Institute for Experimental Medicine , St. Petersburg, Russia
Dr. Ian Holt, Dept. of Molecular & Cellular Pathology, University of Dundee, Scotland.
Eric. P. Hoffman, Ph.D., University of Pittsburgh School of Medicine, USA
Scripps Research Institute, La Jolla, CA, USA
European Molecular Biology Laboratory
MONASH University, Australia
Heinrich-Heine-Universität Düsseldorf, Germany
Centre for Human Genetics, University College, London