1. www.omim.org record #160900
2. http://ghr.nlm.nih.gov/condition/myotonic-dystrophy
3. http://www.ninds.nih.gov/disorders/friedreichs_ataxia/detail_friedreichs_ataxia.htm
4. http://ghr.nlm.nih.gov/condition/facioscapulohumeral-muscular-dystrophy