Genetic and epidemiological investigations on pigmentary degeneration of the retina and allied disorders in Switzerland.

Adult Aged Blindness/complications Cerebellar Ataxia/complications Deafness/complications Female Friedreich Ataxia/complications Genes, Dominant Genes, Recessive Humans Inbreeding Laurence-Moon Syndrome/complications Male Mental Disorders/complications Middle Aged Pedigree Retinitis/complications Retinitis Pigmentosa/complications,epidemiology,genetics Switzerland