Figure 2. Pedigrees of PCG Spanish families with CYP1B1 mutations. Genotypes are indicated below the symbols. DNA samples were not available from the parents of probands in families PCG 29, PCG 32, and PCG 34. Therefore, their genotypes could not be determined. Arrows show the probands. Black and gray symbols indicate PCG and OHT phenotypes, respectively. +: wild-type allele.