Table 3.
Distribution of probands and affected siblings among families
| Number of affected siblings | 1 | 2 | 3 | 4 | 4 | 5 |
| Number of probands in family | 1 | 1 | 1 | 1 | 2 | 1 |
| Number of families | 162 | 32 | 7 | 7 | 1 | 1 |
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