Figure 1. Pedigree of a six-generation
family with six affected members. Blood (3 ml) was drawn from certain
members (III:2, III:7, IV:1, IV:2, IV:3, IV:4, IV:5, V:1, V:2, V:3,
V:4, and V:5) of the family. Solid squares mean male patients, open
circles mean normal females, solid circles mean female patients, open
squares mean normal males, arrow means proband, lines through circles
and squares indicate deceased.