Article
Variable expression of tapetoretinal degeneration in northern Sweden.
Hereditas - 1 Jan 1993
Nordström S
Abstract excerpt
In the county of Västerbotten in northern Sweden, 20 families with 50 diagnosed cases and 53 sporadic cases of tapetoretinal degenerations (TRD), including retinitis pigmentosa (RP), were ascertained. The familial and sporadic cases were traced genealogically as far back as was possible. Ancestors born before 1890 (n = 12,033) were registered on a PC. The analysis of data showed that 7 families (20 cases) and 21...
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