data (average 5.0±3.3). The 416 individuals within the 81 families that were genetically informative include: 142 parent-child, 260 sibling, 53 half-sibling, 11 grandparent-grandchild, 235 avuncular, and 240 cousin relative pairs. Only sib, half-sib, avuncular and cousin pairs were included as being potentially genetically informative. Family structure and genotype consistency were verified and described previously (Ehlers et al. 2004; Ehlers & Wilhelmsen 2005, 2006, 2007).
